In Regent's Park in central London I am down on the grass, sniffing the air like a dog.

"Flare your nostrils, and get closer to the sources of the odours," says artist and designer Kate McLean, as we seek out the subtle smell of snowdrops.
"Normally you'd breathe in for one and a half seconds, so we're quite slow like that, whereas a dog will sniff much faster."
Sniffing and flaring as we go, Kate is taking me on a "smell walk", a guided ramble around London's streets and green spaces to detect the dominant whiffs and odours.
There is some serious science behind our scented stroll.
Kate is a part of a team that has published a research paper on the connections between smells and cities.
"When you are smell walking, you are often looking for the source of the odour, so the whole of our study was based on odour sources and what people actually noticed at and in specific environments," she explained.
"We then looked at the words and the descriptors that came from that and compared them to social media and with that we found that there were correlations between what people were actually describing in their photographs."
Armed with a "smell dictionary" that evolved from the city walks, Kate and the team analysed millions of images on Flickr and Instagram.
They then used the geographical information from these smell related images, dubbed "smellfies", to build the smell maps of London and Barcelona.
Clicking on a street on the London map allows you to zoom in and see how people have described the area, using terms related to emissions, nature, food, animals or waste.
So where people have tagged pictures with words including "cars" or "petrol" or "exhaust", these would be classified as emissions-related in the system and the map would show more red.
But can something built on people's subjective impressions of what they're smelling bear any relationship to objective data on air quality?
"Some people might say you're using social media, it's biased so you're just capturing most of the hipsters in East London," said Daniele Quercia, the computer scientist from Bell Labs who led the study.
"To double check we collected air quality indicators for each street sector for London and we looked at the relationship between these indicators and the profile from the smelly maps."
"We found that when there's a lot of nitrogen dioxide, then there are a lot of traffic emission related words. So, more or less the methodology works - there is a relationship between air pollution and the smelly maps."
There's growing scientific recognition of the power of our noses.  A study in 2014 claimed that humans can discriminate at least 1 trillion olfactory stimuli.
While most of our nasal abilities are a bit more mundane, well trained noses can do important jobs in detecting air pollution.
In the Chinese city of Guangzhou, a team of "smell specialists" have been recruited to identify harmful pollutants in the air.
According to the People's Daily Online, air samples from different parts of the city are captured in sealed plastic bags. Sniffing the contents, the experts identify both the cause and scale of the dirty air.
So can the nasal-based information gleaned from smell walks also be put to practical uses?
Daniele Quercia says that the smelly maps could be used to change the way we work and play.
"If you go for a run next to a street full of traffic, it's the worst possible thing you can do - when you run your blood pressure goes up and your ability to absorb air pollution is far higher than if you were walking.
"But you could have technologies that would design a run for you next to nature based smells, and maybe smells that are more energising than calming. If you want to rest a bit you can do that on a public bench, where you have lavender which is a more calming smell."
A mobile phone app that would suggest walking or running routes for you based on smell based air quality information is in the works.
Other researchers are also building devices based on our nasal abilities.
When the Disney Corporation sent an exhibition of its archive material to China last year, officials were concerned about Beijing's notoriously dirty air.
Air pollution is bad for humans but it can also prove disastrous to works of art, causing damage at much lower levels.
So Disney turned to Professor Ken Suslick from the University of Illinois and his opto-electronic pollution detector, an array of carefully calibrated dyes that change colour when exposed to different odours.
"One shouldn't underestimate the importance of one's own nose, we do take it for granted but it is not a quantitative tool," said Prof Suslick,
"It's very difficult for human beings to accurately quantify what the concentration of different odorants are, and having a simple colour-o-metric based response allows us to do things in a quantitative fashion and that's an extremely useful tool."
Prof Suslick and his team discovered that the wooden crates in which the artworks were transported were at least as large a problem in terms of threat from the air as was the exhibition centre itself.
New devices to help in the fight against air pollution are coming on to the market all the time, including this portable air monitor being developed at the University of Leicester to help gather precise data at a personal scale.
But back in Regent's Park, smell walker Kate McLean says that relying on technology alone in big cities would be a big mistake. Common, nasal sense has a big role to play.
"The technical equipment is always going to be valuable for odour monitoring, for pollution control for large factories, but in terms of the moving, shifting smell-scape which most cities are, then the human nose can contribute just as much if we decide to contribute in the same we do to traffic reports," Kate says.
"We can all become smell-meisters, there's nothing specialist about it, any single one of us can do it. Just get out there - go sniff!"
Follow Matt on Twitter and on Facebook.


Billy Hamilton knows all about the disappointment of missing out on a European Championship.

The former Burnley and Oxford United striker was a fixture of the last Northern Ireland team that qualified for the finals of a major tournament, playing at the 1982 and 1986 World Cups.
He is delighted that the latest generation have reached the Euro 2016 event, but still regrets his side failed to qualify for the 1984 finals in France, despite beating West Germany twice.
"It was heartbreaking to beat West Germany home and away and finish on the same points as them and just be pipped by goal difference," he said.
"I remember listening to the last game on the radio, they were playing Turkey it was still 0-0 and West Germany scored with eight minutes to go. So we were eight minutes away from qualifying.
"I think Northern Ireland might be a surprise package at these finals. Michael O'Neill the manager has got the team playing in such a way that we are very hard to beat."
Hamilton was centre stage when Northern Ireland famously beat Spain at the 1982 World Cup finals, setting up Gerry Armstrong's goal in that game and grabbing two of his own when they later drew with Austria.
"I hadn't scored in the competition up until the Austria game. It was such a relief - you have made your mark on the World Cup and it is something to tell the grandchildren," Hamilton added.
"I think if you looked at my celebration, I rammed about seven different celebrations into the one goal. It is just a release of emotions and excitement. It is hard to recreate it and get that feeling again."
The 1-0 win against Spain in Valencia was particularly sweet for the Northern Ireland players who had been labelled as boozers by the Spanish press before the match.
Hamilton recalls the background to that tag which he says arose from a practical joke played by the Northern Ireland team.
"There was one day Billy Bingham the manager was going to a ceramics factory where they make replicas for the World Cup," he said.
"Billy said 'you can have the day off, I don't want you to leave the hotel - you can have a few drinks but stay in the confines of the hotel'.
"There must have been about 40 empties between us all. We put a cowboy hat on Tommy Cassidy - he had fallen asleep on a lounger and we piled all the beer cans up round his ankles.
"Little did we know that the Spanish press had got into the hotel and they came round and they were taking photographs.
"They took a picture of Tommy and it was in the papers the next day and they said this is how the Irish prepare for the big game.
"That was before the Spanish match and later I think Billy Bingham took great delight, joking you should have prepared more like us."
Hamilton says that any consumption of alcohol by the team was "in moderation".
"Nobody took advantage or went overboard," he added. "The team spirit that built up was brilliant. Unfortunately in the modern game I don't think you would be able to do that now."
However, he also reflects on the irony that when they did defeat Spain most of the players had to wait a full 90 minutes before they could toast their success with a beer.
"I remember we couldn't wait to get back to the hotel to celebrate our famous victory and Gerry Armstrong and someone else were called in for a drug test," he added.
"We were sitting on the bus for an hour and a half because they were so dehydrated they couldn't give the urine sample. They were feeding them with Champagne and beer to get them to go to the toilet and we are sitting on the bus dying to get back to the hotel and couldn't get a drink.
"We were gagging for one - 'let's get home and celebrate' - and when we got back there was about 300 Northern Ireland supporters around the hotel, so it was a big party."


A former Scottish Police Authority board member has claimed its chairman Andrew Flanagan is "not fit to continue on any public board".

Moi Ali, who quit the board amid a row over meetings being held behind closed doors, told Holyrood's public audit committee she felt she was bullied.
MSPs and the police watchdog are looking into transparency at the SPA.
Current board members defended Mr Flanagan, saying there was a "changing atmosphere".
The public audit committee has held a series of sessions on transparency at the authority, with one MSP, Alex Neil, decrying an apparent "secret society" within the board. He previously told Mr Flanagan that "it's not the Kremlin you're running".
In the latest session, witnesses included Derek Penman, HM chief inspector of constabulary in Scotland, Ms Ali, and a group of current board members.
Ms Ali left the board amid a row with Mr Flanagan over whether meetings should be held behind closed doors.
She said Mr Flanagan had told her that expressing disagreement publicly was a resignation matter, and told MSPs that her "removal from the board was straightforward punishment for speaking out".
She said it had been a "really horrendous experience", and said she did not believe it would have happened to her if she was a man.
Asked by Labour MSP Monica Lennon if she felt Mr Flanagan was fit to continue as chairman of the SPA board, she replied: "He's not fit to continue on any public board."
However, board members defended Mr Flanagan and the authority, with Iain Whyte characterising it as "an improving board and an improving organisation".
And George Graham said he didn't recognise the characterisation of the board presented, saying "we are listening and we are ready to adapt our approach".
He said there was a "changing atmosphere" at the SPA since Mr Flanagan took over, saying the board was "much more engaged" with "a clearer sense of purpose".
And he defended having meetings behind closed doors, saying there needed to be "clear space to discuss difficult and complex issues".
He said: "If we got the balance wrong and we need to do more committee work in public then we will do that. But every board needs at least some private space to make decisions and discuss some of the difficult, complex issues policing is going to face."
Mr Neil clashed repeatedly with the sitting board members, describing scrutiny by non-executive directors as "wholly inadequate".
He said he was not left with a lot of confidence that the members were "doing the proper job" and holding the chairman to account.
However, Mr Graham replied: "There are an awful lot of good things that we do. The focus on a singular point, or failure if you want to call it that, I think is a poor characterisation of what we're doing."
SNP member Mr Neil also said he wanted Mr Flanagan to come back to give evidence to the committee again over what he called a "PR disaster".
In the previous session, the chairman said the authority had made "significant steps forward" over the past year.


The UK economy grew 0.5% between July and September, official figures have confirmed, unchanged from the initial estimate.

It is the second estimate for GDP growth from the Office for National Statistics (ONS).
It was a slowdown from the 0.7% rate in the second quarter, but still marked the 11th consecutive quarter of growth.
A widening trade gap is being blamed for the slowdown, with trade having a record negative effect on GDP.
The deficit in the trade balance, the gap between the level of exports and imports, widened from Â£7.7bn in the second quarter to Â£14.2bn in the third.
Exports increased by 0.9% while imports grew by 5.5%.
Overall, the trade gap knocked 1.5 percentage points off GDP, which is the most since records began in 1997.
Construction output was also a drag on growth, with the sector contracting by 2.2%.
The services sector, which accounts for more than three quarters of the economy, grew by 0.7% in the quarter.
Industrial production, which includes manufacturing, grew by 0.2%, and business investment was estimated to have risen by 2.2%.
"No surprises in the second estimate as the economy was ticking over, including a chunky contribution from business investment, which has had an unbroken run of expansion for a year," said Lee Hopley, chief economist at EEF, the manufacturers' organisation.
"Pulling sharply in the opposite direction is the contribution from net trade, with modest export growth being swamped by a massive bounce in imports."


No England players have been named in the inaugural Fifpro Women's World XI - despite the team finishing third at the 2015 World Cup in Canada.

Lucy Bronze, who was shortlisted for the player of the tournament award, is among those overlooked.
Four Americans are in the Fifpro team, including midfielder Carli Lloyd, the 2015 World Player of the Year.
The team, which also includes three Frenchwomen, was voted for by players from 33 different countries.
Fifpro, the global players' union, has named a men's team of the year every year since 2005.
World football's governing body Fifa names only a men's XI at its annual Ballon d'Or gala.


The Green Party of England and Wales has two co-leaders under what they say is a pioneering job-share arrangement.

Caroline Lucas is the Greens' first, and so far only, MP and after seven years in the Commons she is the face of the party for many voters.
She was its first leader, elected in 2008 when the party abandoned its long-standing practice of having a male and a female principal speaker.
She stepped aside in 2012 - some said to concentrate on shoring up support in her constituency, although she insisted it was to "give other people the opportunity to get well-known, to have some profile in the party, hopefully to use that to get themselves elected as well".
She was replaced by Natalie Bennett but the new leader failed to be elected to the Commons in 2015, despite boosting her profile by participating in the leaders' debates at the last election.
Ms Lucas was re-elected to the Brighton Pavilion seat she took from Labour in 2010, with an increased majority of nearly 8,000.
The 56-year-old, who was an academic before entering politics and has also served as a Green MEP, has established herself as a respected voice at Westminster. The Spectator magazine named her "newcomer of the year" in 2010.
She opposed the so-called "bedroom tax", the benefits cap, the renewal of Trident and the Sun's Page Three, while she hit the headlines in 2013 for different reasons when she was arrested during an anti-fracking demonstration.
One of three children of middle class Conservative-voting parents, she attended an all-girls boarding school before earning a degree in English Literature at Exeter University.
She threw herself into anti-nuclear weapons campaigns at university, frequently visiting the Greenham Common women's peace camp, and she remains a leading figure in the Campaign for Nuclear Disarmament and a former vice-president of the Stop the War Coalition.
Ms Lucas is a leading advocate of the so-called Progressive Alliance - a series of electoral pacts between left-leaning parties aimed at preventing the Conservatives from winning seats.
In her own seat, she will benefit from a deal with the Lib Dems, who will stand aside to give her a better chance of being re-elected.
The Greens will not field a candidate in neighbouring Brighton Kemptown to support the Labour candidate, and some other agreements have been struck around the country.
But she has expressed frustration at the refusal of Labour and Lib Dem leaders to endorse the idea nationally, saying it is the only way to combat what she says is the UK's "broken" electoral system and fight back against the "hard" Brexit she says Theresa May is plotting.
Like the Lib Dems, the Greens support a second referendum on the terms of any Brexit deal.
Ms Lucas is married with two children. Under her job-sharing arrangement with Mr Bartley, she leads the party's parliamentary and campaigning efforts in areas such as fracking and the EU, while Mr Bartley focuses more on organisation and policy.
Jonathan Bartley is a relative newcomer to Green Party politics, compared with Ms Lucas.
Active in the Green Party in south London for about five years, the 45-year-old stood for the party in the London Assembly elections but failed to win a seat. A year before that, he stood as a general election candidate in Streatham, coming fourth.
As a student at the London School of Economics in the early 1990s, Mr Bartley is believed to have had Conservative leanings.
He is reported to have volunteered for John Major in 1995 when the then prime minister faced a challenge to his leadership from John Redwood.
He founded the think tank Ekklesia in 2002 - only standing down as a director earlier this year - and became a commentator on issues of faith, religion and public policy.
First rising to national attention as vice-chairman of the Yes to Fairer Votes Campaign during the 2011 referendum, he helped ensure the Greens were a prominent voice.
He was a spokesman for the organisation in its ill-fated effort to persuade the public to ditch the current first-past-the-post electoral system in favour of the alternative vote.
But he is perhaps best-known for his public confrontation with David Cameron during the 2010 general election campaign, during which he raised his concerns about the treatment of disabled children in the education system.
Mr Bartley told the then prime minister about the two-year struggle he had faced to get his son Samuel into a local school and remonstrated with Mr Cameron about plans to end the bias towards inclusion of children with special needs in mainstream schools.
Mr Bartley, who is married with three children, is a direct descendant of the prison reformer Elizabeth Fry and is a drummer for the Mustangs soul group.
In March, he admitted in an interview with BBC Radio 5 Live that he killed a student in a car crash when he was 17 years old.
The accident happened while he was on his way home from a concert in London. The police did not press charges after an investigation.
Mr Bartley, who apologised to the victim's family after attending an inquest, which recorded a verdict of accidental death, said he "felt so responsible, so guilty" about what had happened and that it had turned his life upside down.
But he added that it was also one of the reasons he wanted to "bring about policy changes" to improve road safety and reduce the 40,000 deaths he said occurred every year from air pollution caused by traffic.


An Afghan national who was detained by British forces for more than 100 days has suffered a setback in his attempt to win damages from the UK government.

Serdar Mohammed was arrested in Helmand in 2010 but argues his subsequent detention breached his human rights.
In 2014, the High Court ruled UK forces had unlawfully detained Mr Mohammed before handing him to Afghan police.
However, the UK's Supreme Court has now allowed the Ministry of Defence to appeal against that ruling.
Mr Mohammed was seized on 7 April 2010 in the Kajaki district of Helmand province, Afghanistan, as he fled along a road where a rocket-propelled grenade launcher had been found after a firefight.
He was detained by British troops until 25 July 2010, when he was then transferred to Afghan authorities.
Mr Mohammed was subsequently tried, convicted and sentenced to 10 years' imprisonment for offences relating to the insurgency in Afghanistan.
However, Mr Mohammed claims British forces held him for an unlawful amount of time and he is seeking damages.
Under International Security Assistance Force procedures, suspects were allowed to be detained for a maximum of 96 hours - or four days - after which time they had to be released or handed over to Afghan authorities.
In November 2009, the UK government adopted its own policy under which ministers could authorise detention beyond 96 hours - if it was believed a suspect could provide new intelligence.
However, in 2014, High Court judge Mr Justice Leggatt found that while Mr Mohammed's arrest and initial detention for the initial 96 hours had been lawful, he had then been unlawfully held for a further 106 days.
Mr Mohammed's lawyers successfully argued in court that the UK's policy on detention had breached his rights under the European Convention on Human Rights (ECHR).
The MoD then challenged that ruling.
The Supreme Court judgement said that even if it can be shown the MoD contravened the ECHR in detaining Mr Mohammed for longer than 96 hours, it would not necessarily entitle him to damages.
BBC defence correspondent Jonathan Beale said the case was now likely to go back to court as the MoD has to show there was an imperative security reason to detain Mr Mohammed.
However, our correspondent said the Supreme Court's ruling would be seen as a "partial victory" for the government.


Kurdish and Arab fighters say they have liberated the north Syrian town of Manbij from so-called Islamic State, cutting off its route to Europe.

The coalition of militias fought 73 days to drive out IS and say they freed 2,000 civilians being used as human shields on the final day.
IS captured Manbij, close to the Turkish border, two years ago.
Roads to Syria's embattled second city, Aleppo, and to the IS capital, Raqqa, pass through the town.
"After the liberation of Manbij, IS members won't be able to freely travel to and from Europe anymore," said Syrian Kurdish leader Salih Muslim.
The Syrian Democratic Forces (SDF) coalition includes the powerful Kurdish YPG militia. They were backed in their campaign against IS by US-led air strikes on IS positions.
Responding to reports of the human shields, EU foreign affairs chief Federica Mogherini said in a statement that IS continued to "pose a threat to the people of Syria, Iraq, the region as well as to Europe and beyond".
"The recent military advances against Da'esh [IS] by the Global Coalition together with the Syrian Democratic Forces in North West Syria are welcome and the EU will continue to commit its efforts, as part of the Coalition, to its non-military fields of activity," she added.
The roads through Manbij had become crucial to the group's ability to move fighters, weapons and supplies in and out of Syria.
According to the Syrian Observatory for Human Rights, which monitors the conflict from the UK, around 500 cars left Manbij carrying IS members and civilians.
They were heading north-east towards Jarablus, a town under IS control on the Turkish border.


It's been called the most spectacular light show on earth, but not many of us ever get the chance to see it.

But now Nasa have released new images of the Northern lights, or Aurora Borealis as they're also known.
They did it by using a time-lapse camera on board the International Space Station.
It took a snap every 5 seconds and put the pictures together to form these moving images - what a spectacular view!
They may look like special effects, but they are in fact natural.
It all starts when the sun spits out a solar blob, a bit like a bag of electrical jelly.
It's charged and heading to Earth at about one million miles per hour.
When it hits the Earth's magnetic field it pushes harmless currents that are floating above earth deeper in to our atmosphere around the north and south poles.
This then makes the air glow like a florescent tube.


Bobby Madden admits refereeing the Scottish Cup final was the furthest thought from his mind while he recovered from thyroid cancer.

He takes charge of Saturday's meeting between Celtic and Aberdeen, but for a time last year was not sure if he would continue officiating.
"The surgeon said I should focus on going back to work in a normal job," Madden said.
"The cup final wasn't what I was thinking about, it was my well-being."
The official was first diagnosed before last summer's European Championships in France, but delayed treatment so that he could be part of the team assisting fellow Scottish referee Willie Collum at the finals.
Madden started this season, then went for surgery after taking charge of Celtic's 4-1 win over Aberdeen in August. He returned to refereeing two months later.
"Only when I was first diagnosed," replied Madden after being asked if he thought his career may be over.
"I realised very quickly after the surgery that everything had gone well and that I would go back to refereeing. Whether I thought I would come back as quickly as I did, maybe not so. That was due to the care I was given and the focus and support around me.
"I took the decision in December 2015 to focus totally on my refereeing and I gave up my job because of the demands of domestic and international football. So really I wanted to get back to football to prove that I'd made the right decision and to be successful in refereeing.
"When the consideration was being given to the Scottish Cup final, I'd had a good season so I was hopeful and when the call came in to say I was refereeing it, it was fantastic news and an honour."
Madden believes this has been his best season as an official, and in March took charge of his first Old Firm derby. The game at Celtic Park finished 1-1, although the referee was criticised by Celtic manager Brendan Rodgers for not awarding a penalty for a challenge by Rangers defender Clint Hill on Leigh Griffiths late in the game.
The 38-year-old describes Rodgers and his Aberdeen counterpart Derek McInnes as "good guys" and says he is preparing thoroughly for the final.
"We have independent assessors who watch us in every match and my marks would dictate that it's been my most successful season," Madden explained.
"I'm going through the same training programme that I would for every match. I look at teams' tactics, how they set up at set pieces.
"Around 28% of goals are scored from set pieces, so it's important that referees are aware of any potential tactics or scenarios that teams might run through. I'm putting a lot of attention on how both teams will set up and in matches against each other this season.
"Players are under pressure, and we need to accept that as referees. Some players deal with that differently, but there are some who every week are the same and you can always talk to them. There are players on the field on Saturday from both teams who I know I can talk to if there's anything I want to address."
Madden - who will have two additional assistants behind each goal at Hampden on Saturday - hopes that, for all he is looking forward to the responsibility of taking charge of the final, he is not the focus of post-match discussions.
"The cup final is about the stories of the players and the managers, the tactics, the goals," he added. "Every official hopes that the evening after the cup final, the talking point isn't the referee."


A four-year-old boy died when he was hit by a car in north-west London.

The child was struck by the vehicle in Montrose Avenue at the junction with Burnt Oak Broadway, Edgware, at about 19:15 BST.
Police and the ambulance service attended the scene, but he was pronounced dead in hospital.
The driver of the car stopped and police said he was helping with their investigation. No arrests have been made.
The boy's next of kin have been informed.


Plans to build 120 new homes in Cheshire have been blocked on the grounds they would interfere with the Jodrell Bank radio telescope.

Gladman Developments had denied the use of household appliances in Goostrey would affect the observatory's ability to receive radio signals from space.
But Communities and Local Government Secretary Sajid Javid ruled against the proposed development.
It would "impair the efficiency" of this "world-class facility", he said.
The proposed site, off Main Road in Goostrey, is 1.95 miles (3.14km) from the observatory, home to the world famous Lovell Telescope.
Cheshire East councillors rejected the plans last year.
But the developer appealed the decision claiming there was "no evidence" their plan for 119 extra homes would cause a significant increase in radio interference.
A public inquiry disagreed, saying the observatory, "as an established world class facility, should be afforded reasonable protection".
"This proposal could damage the world-class work being carried out by the observatory," the government ruling said.
"The harm to the efficiency of the Radio Telescope carries substantial weight against the proposal."
It also concluded the proposal would "be at odds" with the council's strategy for development in the countryside.
Cheshire East Councillor Ainsley Arnold said he was "delighted" and glad "the long-term protection of vital scientific work has prevailed over the short-term high demand in housing supply."
"Jodrell Bank observatory is a vital asset to this borough, the nation and the international scientific community".
The council is "doing everything possible to meet the housing needs of our area" but "this was simply the wrong development in the wrong place," he said.


A security officer has been jailed for 20 months after smuggling a camera into a high security hospital to try and sell photos of Ian Brady.

Alan Hagan, 48, of Liverpool, was convicted over his dealings with News of the World reporter Lucy Panton in 2008 while he worked at Ashworth Hospital, Merseyside.
He denied misconduct in a public office but was convicted at the Old Bailey.
Moors Murderer Brady has been at Ashworth for 30 years.
Sentencing, judge Mark Lucraft QC rejected a call from his lawyer for a suspended sentence, saying only immediate custody was appropriate.
He said: "At Ashworth, where staff deal with some of the most vulnerable and dangerous people, the confidentiality of patients should be safeguarded."
The judge said Brady "took against staff and became uncommunicative when he thought information was being leaked to the paper."
The court heard Hagan, of Galston Close, Liverpool, was paid Â£1,000 for a story headlined "Suicide Brady hid pills in his sock" in February 2008, shortly after he first made contact with Ms Panton.
He wanted to take revenge on bosses at the psychiatric hospital for his treatment as an employee, and discussed payment of Â£50,000 for the images.
Even though he did manage to smuggle a camera into the hospital, the resulting pictures were not good enough quality and they were not published.
Brady, 77, who has been a patient at Ashworth since 1985, tortured and murdered five children with Myra Hindley, who died in prison in 2002.
He was jailed for three murders in 1966. The pair later confessed to another two murders.
Earlier in the mitigation, Michael Duck QC said Hagan was a man of "positive good character" who had not instigated the plan to get pictures of Brady or actively sought payment.


Substitute Mustapha Carayol's late goal earned Leeds a point after an improved second-half display against Brentford.

A fine Sam Saunders strike gave the Bees a deserved interval lead, and although they failed to press home their dominance, it looked likely to secure a second consecutive league win.
But Carayol's 18-yard shot levelled the scores with six minutes remaining.
And although chances came at both ends in a frantic finale, neither team had the composure to take them.
The Bees, who had lost four in a row before Saturday's victory at Preston, will rue their inability to take their opportunities before the break.
Dean Smith's side played with confidence and quality as they controlled possession during a stylish first-half performance in the teeming rain at Griffin Park.
Josh McEachran was the game's outstanding player, dictating the pace from the centre of the pitch along with John Swift and the ever-dangerous Alan Judge.
But it was Saunders who made the difference, racing from the halfway line and using superb decoy runs from Lasse Vibe and Alan Judge to full effect before beating keeper Marco Silvestri with a powerful low strike.
Mirco Antenucci, on as an early substitute for the injured Chris Wood, almost levelled within two minutes when his long-range effort was kept out by a brilliant save by David Button.
But the Bees remained the more dangerous side with Judge twice going close to doubling the lead with decent strikes.
An uncharacteristic McEachran error almost presented the visitors with an equaliser, but Souleymane Doukara sent his shot just wide of the post.
But the away side's endeavour was rewarded when Carayol netted from the edge of the box.


In the first of a series of articles on key assembly battleground seats, BBC Wales news online's David Deans looks at the West Wales seat of Llanelli.

Much of the focus in the run up to the election has been on seats where the Tories are nipping at the heels of Labour - like in north east Wales and places like Wrexham and Cardiff North.
But the seat where Plaid Cymru are closest to removing Labour is Llanelli - this is the only constituency to have changed hands at every assembly election.
In fact Llanelli was won by Labour with a razor-thin majority of just 80 last time around.  Plaid Cymru won in 1999, with Labour winning by 21 votes in 2003.  The seat reverted to Plaid again in 2007.
But in 2011 Labour's Keith Davies came out on top, beating Plaid's Helen Mary Jones . Ms Jones is standing again - her fifth time on the ballot paper.
Ms Jones is running again as the Plaid candidate, but this time her challenger is Lee Waters.
A former ITV political journalist, Mr Waters is currently best known in Cardiff Bay circles as the outspoken director of the Institute of Wales Affairs think tank.
His selection was an interesting pick, given Mr Waters has been known to be publicly critical of the Welsh Government in the past.
Ms Jones has previously held the seat of Llanelli from 1999 to 2003, before becoming AM for Mid and West Wales from 2003 to 2007, and returning to Llanelli in 2007.
After Ms Jones lost her seat, she went on to be chief executive of Youth Cymru.
The race has been made even more uncertain thanks to the presence of former Plaid Cymru councillor, Sian Caiach of People First.
Ms Caiach, who is currently an independent Carmarthenshire councillor for Hengoed, polled 2,000 votes at the last assembly election.
Professor Roger Scully of the Wales Governance Centre said Llanelli, in terms of the overall election outcome on 6 May "might not actually be that important".
"If Plaid win Llanelli they might just lose a consequential Mid and West Wales list seat," he said.
But he said Plaid would "really want" to recapture the marginal. On the other hand, Labour holding Llanelli might be seen by the party "as part of a general attempt to start fighting back in the west of Wales," he said.
Another factor is what impact UKIP candidate Kenneth Rees may have. Prof Scully said the party did "surprisingly well" in the seat at the general election.
He said: "The candidate is fairly well known locally. It's the same candidate as at the general election. Some people felt his presence [then] probably hurt Plaid more than Labour."
Other candidates in the seat are:


The Republic of Ireland's parliament has approved the sale of its Aer Lingus stake to British Airways owner, IAG.

Irish lawmakers voted by 74 votes to 51 in favour of the deal.
Some MPs had expressed concern about the sale of the 25% stake, fearing that services between Irish airports and London's Heathrow could be cut.
However, on Tuesday, after months of negotiation, the government and IAG announced an agreement under which IAG promised to maintain routes.
Under the deal, IAG agreed to a legally binding commitment to maintain current services between Heathrow and Dublin, Cork and Shannon for at least seven years.
Also, Aer Lingus will operate its international passenger services under the Aer Lingus brand and its head office will remain in the Republic of Ireland.
In order to take complete control of Aer Lingus, IAG still needs to reach an agreement with the remaining big shareholder, Ryanair.
Ryanair, which holds a 29.8% stake, says it will consider a bid when it receives a formal offer.


Communities across California are bracing for two weeks of heavy rains generated by the El Nino system.

Northern California could receive up to 15in (38.1cm) of rain over the next 16 days, with parts of the Sierra Nevada mountains getting up to 24in of snow.
The El Nino system, a warming trend in the Pacific Ocean, is expected to spur extraordinary weather across the US in the coming weeks and months.
The phenomenon is prompting warnings of flash floods and mud flows.
Light rain began falling across the region on Monday, but stronger storms are expected to hit the area on Tuesday, with at least two more systems expected on Wednesday and Thursday.
Much of the area in the storms path has fallen victim to wildfires in recent years, making the heavy rains more hazardous. After wildfires destroy vegetation, there is an increased risk of landslides and mudslides along sloped areas.
The concerns are shared in southern California, where wet conditions could put communities in the Los Angeles area at risk of flooding and susceptible to debris and mud flows. Between two and three-and-a-half inches of rain are expected through Friday in southern California.
Across the state, officials are issuing warnings for the storms and telling residents to clear gutters and anything that could hinder the flow of storm drains. Efforts are under way to shelter homeless people.
El Nino systems form every two to seven years when the warm waters of the central Pacific ocean expand towards South and North America. The current El Nino is the strongest since 1998 and is expected to be in the top three most powerful episodes ever recorded.
In recent weeks, the system has generated unusual weather across the US with unseasonably high temperatures in the northeast, uncommon winter tornados in the south, and a deluge of snow across the west.
The El Nino system has also generated intense flooding across South America, with Paraguay, Argentina, Uruguay and Brazil experiencing the worst flooding in 50 years, resulting the evacuation of more than 150,000 people.
In many ways the soggy deluge may bring some welcome relief.
California has been struggling with a four-year drought that has forced officials to enact a contentious water-savings plan. Residents have missed savings targets for at least two months in a row.
However, despite the forecast for heavy downpours, experts say the severity of the drought is such that one El Nino system will not be able to overcome it.


Leed Rhinos forward Stevie Ward says an England debut would be "magical" following an injury-hit 12 months and dealing with depression.

The 22-year-old, who has replaced Brett Ferres in the squad, returned in September following a knee injury.
"It would be a bizarre moment, absolute elation and a dream accomplished, putting an England shirt on," he said.
England play a warm-up game in France on Saturday before their opening Four Nations match on 29 October.
Ward was set to start a three week end-of-season road trip around the USA with Leeds team-mate Adam Cuthbertson when he found out he had been called up.
"It's been a rollercoaster year, 2016," Ward told BBC Radio 5 live. "It was great to get those four games in for the Rhinos and hopefully the fifth game could be an England international debut.
"I'm proud to be taking part and just glad to have overcome all these challenges, from an injury and everything else, it's pretty magical really."
Earlier this year, the loose forward set up an online magazine, Mantality, encouraging professional sportspeople to be honest about difficulties with depression.
"Luckily for me I've been in a pretty good spot when I've been playing and I can deal with things, but there are so many people who suffer with it [mental illness] while they are playing," Ward explained.
"It's not great that people carry on and don't speak much about it because it is this macho sport where people don't deal with it. But I'm here at the England camp and people know I've spoken out about it and it's something that needs to be looked at constantly."
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Many teenagers in Wales are put off from applying to Oxford and Cambridge Universities because of a lack of self-confidence, says a report.

The man tasked with getting more Welsh children into Oxbridge said teachers often lacked practical advice to offer pupils applying to top universities.
Former Welsh secretary Paul Murphy said pupils should be helped to "aim for the stars".
The Torfaen MP publishes his interim report on Friday.
The number of pupils accepted into Oxbridge from Wales has been falling.
Figures have shown the number of comprehensive pupils getting into Oxbridge fell from 96 in 2008 to 76 in 2012.
Mr Murphy, appointed to the Oxbridge role by the Welsh government, has been asked to establish why pupils from England and Northern Ireland were more likely to be accepted than those from Wales.
"I want all our young people to have the opportunity to realise their educational dreams, whichever path they choose - whether that is Oxbridge, another university, training or an apprenticeship," said Mr Murphy, who studied history at Oriel College, Oxford.
"They should be given all the support and encouragement needed to aim for the stars," he said.
He has said previously students from the south Wales valleys were five times less likely to apply to Oxford or Cambridge than students in some of the more affluent English counties.
The initial findings of Mr Murphy's interim report come from conversations with pupils, parents, teachers and lecturers across Wales and to students, tutors and admissions staff at Oxford and Cambridge over a six-month period.
Initial findings include:
Mr Murphy added: "Some of the students I spoke with consider Oxford and Cambridge to be elitist institutions, where background and social class are important.
"These misconceptions can prevent students from applying and cause added anxiety during the application process.
"Those Welsh students who are capable of flourishing in these systems deserve the opportunity to compete on a level playing field with all other applicants."
There have been accusations previously that there was little support from the Welsh government for schools trying to get pupils into the very best universities.
But Education and Skills Minister Huw Lewis said ministers wanted young people to "aim high regardless of their background" which was why Mr Murphy had been appointed.
"I thank him for his work so far and look forward to considering his interim and final report in due course, which will contribute to our widening access agenda," said Mr Lewis.
"We're always keen to learn how we can help our young people to realise their potential and get the qualifications that they need to enter the universities they aspire to."
Richard Partington, senior tutor at Churchill College, Cambridge, said Mr Murphy and his staff had taken an "admirably deep dive into the question of Welsh applications and admissions to Oxford and Cambridge".
"We welcome his interim report. His ideas are interesting and important, and his plans for the direction of future research on the issue persuasive," he said.
"We look forward to receiving his final views in due course."
Oxford University said it was in its interests to attract the brightest students in Wales to study there.
Mike Nicholson, director of undergraduate admissions and outreach at Oxford, said: "The university does a lot of work with schools and teachers in Wales to provide information and encouragement for talented students to make a competitive application to Oxford, and many Welsh students join our annual UNIQ summer school where they experience what it is like to live and study in Oxford.
"But we know that attainment in schools is a major barrier to increasing the number of Welsh students at Oxford, while some talented students feel that places like Oxford and Cambridge are not for them, so we will look at the findings of this report with interest."


Ed Miliband was not judged to be as strong a leader as David Cameron, an internal Labour report into why the party lost the 2015 election has found.

The report, written by former Cabinet minister Dame Margaret Beckett, said the comparative standing of the two men was one of four reasons for the defeat.
Other factors identified were failures in economic and immigration policy and the fear of the SNP propping up Labour.
The report said Labour faced a "huge challenge" to win again in 2020.
The report concludes that the party needs a massive upswing in its fortunes in England and Scotland if it is to be returned to power in five years time.
It urges the party to do more to appeal to older voters and to construct a clear "policy narrative" that can be sold to the public.
The BBC's assistant political editor Norman Smith said the analysis made "sobering reading" for Labour, with weaknesses identified in key areas.
The report concluded that Labour's "ground campaign" during the election was strong but suggests many voters had already made their minds up and opinion polls suggesting it was neck and neck with the Conservatives were wrong.
Pollsters and activists on the doorstep consistently heard four reasons for the party's defeat, which saw it lose ground in key marginal seats in England and found itself all but wiped out in Scotland. They were:
On the issue of leadership, the report argues that Mr Miliband enjoyed a "surge" in 2015 and performed well during the campaign itself.
But it says he was unable to shift public perceptions, borne out in opinion polls, that David Cameron was regarded as more "prime ministerial".
"Over the period 2010-15, what the polls did consistently show was that, when asked if 'this man could be prime minister', David Cameron was rated above Ed Miliband. Since he actually was prime minister, this response was perhaps less than surprising.
"It is the fate of every Labour leader of the opposition to be the target of ferocious attack from partisans sections of the media," it added. "However, Ed Miliband faced an exceptionally vitriolic and personal attack."
The report says assumptions that Labour lost the election because it was too left-wing and because its policies were unpopular was overly simplistic and should be treated with caution, pointing out that the party's most radical initiatives - such as an energy price freeze and mansion tax on expensive properties - were among those most liked by the public.
But it says Labour lacked a consistent over-arching theme and struggled to communicate its approach to the voters in contrast to the "brutal simplicity of the Tories and UKIP".
"The reaction to the 2015 result was inevitably an emotional one for Labour because it was such a surprise," Dame Margaret said.
"There was certainly no complacency in the Labour ranks, but the polls showed us neck and neck with the Tories, when clearly we weren't.
"There are certainly lessons to learn from defeat. This report has been a key part of recognising areas we need to improve on and building on aspects of our campaign that performed well."
On the challenge facing Labour in 2020, the report concluded: "It is critically important for the country that Labour is able to win the 2020 election but we will face huge challenges. On current boundaries we need 94 gains to secure a majority of two.
"Were Labour to fail to recover in Scotland, it has been estimated that the swing required in England and Wales from the Tories to Labour would be 12.5% to secure an overall majority."
Shadow business secretary Angela Eagle said the party must pay close attention to the report as it sought to "remake its appeal", telling the BBC that Labour had come back from heavy defeats before and would do again.
But Tom Baldwin, Mr Miliband's former director of communications, said the current leadership had not given enough thought to why Labour lost. "Unless we start thinking about why we lost, we won't be able to win again," he told the BBC News Channel.


An alleged Indian thief who swallowed a gold necklace has expelled it in his excreta after he was fed special liquids and more than 60 bananas.

Anil Yadav was accused of snatching the necklace, worth 63,000 rupees ($995; Â£648), from a woman on Monday.
Doctors at Mumbai's Sion hospital also gave him four enemas after an X-ray scan of his body showed the necklace lodged in his stomach.
Meanwhile, the owner of the necklace has said she will not wear it again.
Rajashree Mayeker told Midday newspaper correspondent Saurabh Vaktania that she would take it to her jeweller who would melt it and re-make it.
The hospital authorities said Mr Yadav expelled the necklace on Thursday morning in his stool after he was put on a special diet of bananas, milk and antacids.
They said the necklace took so long to come out because it had a large pendant which was hindering its expulsion.
On Wednesday, police official Rahul Pawar told the BBC that Mr Yadav, 30, snatched the necklace weighing 25g (0.06lb) from Mrs Mayeker, 52, as she was walking home in the Sion area on Monday afternoon.
He was caught after a chase by the police and public.
After some people who had caught him said they had seen him swallowing something, Mr Yadav was taken to the hospital where an X-ray revealed the necklace inside his body.
Doctors, however, have questioned the use of bananas as a laxative with some saying medicines could have done the job much more easily.


Partick Thistle moved off the bottom of the Premiership after twice coming from a goal down to draw with Kilmarnock.

Kris Boyd struck to put Killie ahead but Steven Lawless tucked away Thistle's deserved leveller before the half-time break.
Soulemane Coulibaly headed in Dean Hawkshaw's cross for Kilmarnock's second but Liam Lindsay then equalised from close range.
The visitors finished with 10 men, Abdul Osman sent off for two bookings.
Media playback is not supported on this device
The visitors made a positive start and Lawless had a shot blocked by Lee Hendrie after David Amoo's goal-bound shot had been deflected wide by Jags team-mate Kris Doolan.
Killie responded with Coulibaly trying to repeat his acrobatic effort against Dundee last week, the striker controlling Gary Dicker's chipped cross and hooking overhead to force a fine save from Ryan Scully.
Boyd then showed all his striking instincts, reacting quickly after the ball looked liked running away from him to fire left-footed into the net.
Doolan had a shot turned away by the boot of Killie keeper Jamie MacDonald but the leveller duly arrived as Lawless latched on to an Amoo cross and clipped the ball into the net.
Coulibaly worked a neat one-two with Martin Smith before firing in a shot which Scully saved well and the goalkeeper then parried a free-kick by the striker.
But the Ivorian would eventually find the net, leaping high to meet Hawkshaw's cross from the right.
It was Coulibaly's sixth goal of the season.
Thistle were facing a fifth defeat in a row in all competitions but were determined to take something back to Glasgow.
A free-kick on the right produced their equaliser as Callum Booth's delivery eluded everyone until central defender Lindsay blasted high into the net.
The drama did not end there as Thistle skipper Osman was sent off after a foul on Rory McKenzie resulted in a second booking for the midfielder.
And though Thistle go level on points with Inverness, Partick's superior goal difference takes them up to 11th with Killie eighth.
Media playback is not supported on this device
Kilmarnock's Lee Clark: "The key thing for us is we've got to start keeping some clean sheets because we're certainly a threat at the other end.
"It's frustrating. We need to stop conceding these silly goals and go on to win games.
"We certainly are (making progress), there's lots of positives to take. We're creating lots of opportunities, we have players in the attacking areas on form, we're proving very difficult for teams to beat."
Partick Thistle's Alan Archibald: "Going forward, we moved the ball really well but I was disappointed with our defending. Kilmarnock didn't have to work hard enough for their goals.
"It stops the rot after a bad run and a terrible performance last week."
On Osman's sending off: "I think he has to be a bit more experienced. Once he is booked - you have to watch what you are doing.
"We became a bit stretched so it was probably a good foul at the time but we have lost him for next week."
Match ends, Kilmarnock 2, Partick Thistle 2.
Second Half ends, Kilmarnock 2, Partick Thistle 2.
Attempt saved. Adebayo Azeez (Partick Thistle) right footed shot from outside the box is saved in the centre of the goal.
Substitution, Kilmarnock. Jordan Jones replaces Martin Smith.
Substitution, Partick Thistle. Sean Welsh replaces Kris Doolan.
Substitution, Partick Thistle. Christie Elliott replaces Chris Erskine.
Second yellow card to Abdul Osman (Partick Thistle) for a bad foul.
Martin Smith (Kilmarnock) wins a free kick in the defensive half.
Foul by Abdul Osman (Partick Thistle).
Abdul Osman (Partick Thistle) is shown the yellow card.
Rory McKenzie (Kilmarnock) wins a free kick in the defensive half.
Foul by Abdul Osman (Partick Thistle).
Goal!  Kilmarnock 2, Partick Thistle 2. Liam Lindsay (Partick Thistle) left footed shot from very close range to the bottom left corner. Assisted by Callum Booth.
Foul by Scott Boyd (Kilmarnock).
Chris Erskine (Partick Thistle) wins a free kick on the right wing.
Attempt missed. Souleymane Coulibaly (Kilmarnock) right footed shot from the centre of the box misses to the right.
Dean Hawkshaw (Kilmarnock) wins a free kick in the attacking half.
Foul by Steven Lawless (Partick Thistle).
Corner,  Partick Thistle. Conceded by Gary Dicker.
Corner,  Partick Thistle. Conceded by Souleymane Coulibaly.
Corner,  Partick Thistle. Conceded by Luke Hendrie.
Attempt saved. Adebayo Azeez (Partick Thistle) right footed shot from the left side of the six yard box is saved in the centre of the goal.
Foul by Martin Smith (Kilmarnock).
Abdul Osman (Partick Thistle) wins a free kick in the attacking half.
Foul by Scott Boyd (Kilmarnock).
Chris Erskine (Partick Thistle) wins a free kick on the right wing.
Corner,  Kilmarnock. Conceded by Abdul Osman.
Substitution, Partick Thistle. Adebayo Azeez replaces David Amoo.
Attempt saved. Nathan Tyson (Kilmarnock) right footed shot from outside the box is saved in the centre of the goal.
Foul by Gary Dicker (Kilmarnock).
Kris Doolan (Partick Thistle) wins a free kick in the attacking half.
Nathan Tyson (Kilmarnock) wins a free kick in the attacking half.
Foul by Callum Booth (Partick Thistle).
Dean Hawkshaw (Kilmarnock) is shown the yellow card for a bad foul.
Foul by Dean Hawkshaw (Kilmarnock).
Kris Doolan (Partick Thistle) wins a free kick on the left wing.
Goal!  Kilmarnock 2, Partick Thistle 1. Souleymane Coulibaly (Kilmarnock) header from the left side of the six yard box to the top left corner. Assisted by Dean Hawkshaw.
Attempt missed. Souleymane Coulibaly (Kilmarnock) left footed shot from outside the box is close, but misses to the left.
Foul by Gary Dicker (Kilmarnock).
Kris Doolan (Partick Thistle) wins a free kick in the defensive half.


The renowned BBC Northern Ireland broadcaster and journalist Paddy O'Flaherty has died at the age of 73.

His death followed a recent illness.
Editor of BBC Northern Ireland Radio Current Affairs and Digital News NI, Adam Smyth, has paid tribute to Mr O'Flaherty.
He described him as "one of the best radio broadcasters these islands have ever produced, a tremendous character and a man whose name was synonymous with BBC Radio Ulster".
Mr O'Flaherty presented and reported on a variety of BBC Radio Ulster programmes including Good Morning Ulster and Evening Extra, as well as reading television and radio news bulletins for the corporation.
A life-long supporter of country music, he built up a huge following for his radio programmes, first on Downtown Radio and then on BBC Radio Ulster with the long-running Country Club in which many stars appeared, including Willie Nelson, Johnny Cash and Loretta Lynn.
Mr O'Flaherty also presented Make Mine Country on BBC NI television.
Away from the broadcasting studio, he was also an accomplished violinist as well as a keen angler. He was the angling reporter on BBC Radio Ulster's Your Place and Mine in the 1990s.
Peter Johnston, Director BBC Northern Ireland, said: "Paddy was for many years a well-known face and voice across our airwaves and television screens."
Kathleen Carragher, Head of BBC News NI, said Mr O'Flaherty was "simply a fantastic radio broadcaster".
She said his BBC Radio Ulster reports covered "life in Northern Ireland, the highs and the lows, the people and the places and his skilled radio reports brought the listener to the heart of any story".
"He had a deep love and understanding of Northern Ireland and it informed all his work," she added.
"He will be sadly missed by all his colleagues in Broadcasting House."
Colleague and BBC National Union of Journalists (NUJ) representative Mervyn Jess said Mr O'Flaherty was "a legend on local radio and it was a privilege to have worked alongside him during his decades in the broadcasting industry".
NUJ Irish Secretary SÃ©amus Dooley said he was "the embodiment of all that is best in public service broadcasting".
First Minister Arlene Foster said she was sorry to hear about Mr O'Flaherty's death and described him as "a gentle person".
DUP MP Ian Paisley said Mr O'Flaherty was one of the most courteous and decent people he "had the honour to meet".
Ulster Unionist leader Mike Nesbitt, who was previously a broadcaster and journalist with BBC Northern Ireland and UTV, said simply: "Great voice. Great journalist. Great man."
SDLP MP Mark Durkan said Mr O'Flaherty was an engaging broadcaster and "a gentleman who made it seem easy".


The European Commission will back visa-free travel for Turkish citizens inside Europe's passport-free Schengen area, sources have told the BBC.

Visa liberalisation was offered in return for Turkey taking back migrants who crossed the Aegean Sea to Greece.
But Turkey must still meet EU criteria, and the visa deal needs approval by the European Parliament and member states.
The EU fears that without this deal, Turkey will not control migration.
The waiver would scrap the requirement for Turks to get a three-month, short-stay Schengen visa, for tourism or business trips. But it will not grant Turks the right to get a job in Europe.
The UK, Ireland and Cyprus are not in Schengen, so they will keep the visa requirement for Turkey.
Turkey has threatened to stop taking back migrants from Greece if the EU fails to deliver on visa liberalisation.
A long-running dispute with Cyprus is a major stumbling block in Turkey's bid to join the EU, not least because Ankara does not recognise the Republic of Cyprus, an EU member.
Turkish-controlled northern Cyprus does not have international recognition.
But a Turkish official, quoted by Reuters news agency, said a visa deal with the EU would also mean Turkey scrapping its visa requirement for Greek Cypriots.
The large influx of migrants and refugees arriving in Europe from Turkey, and from North Africa, has caused a political crisis among EU states.
What is the Schengen agreement?
Turks look to EU to scrap visas
If the European Commission (the EU's executive body) does make the recommendation on Wednesday that Turks be granted visa-free travel in Europe's Schengen area, as whispers from well-placed EU sources suggest, then it will be doing so holding its nose and its breath.
Freedom of speech; the right to a fair trial; revising terrorism legislation to better protect minority rights - these are just some of the criteria demanded by the EU of countries before it lifts visa requirements, even for short-term travel.
It is hard to see how Turkey could be described as meeting these conditions. The government in Ankara increasingly cracks down on its critics in a manner more autocratic than democratic.
But these are desperate times for the EU. The European Commission and most EU governments are under huge public pressure to ease the migrant crisis.
My sources say the Commission will therefore keep to the agreed script. But they insist this is no blank cheque. Turkey will get the green light over visas this week to keep it sweet. But it will also be informed of the outstanding criteria it still needs to meet.
Read more from Katya
There is a good chance it will. EU politicians are under huge pressure to keep sending migrants back to Turkey, even though the deal is very controversial. And Turkey insists that the EU must fulfil its offer of visa liberalisation by the end of June.
However, British MEP Claude Moraes told the BBC that the deal would come under very tough scrutiny in the European Parliament.
Many Turks regard the visa requirement as humiliating - some have missed study opportunities or business conferences in the EU for want of a visa. And scrapping visas would signal that the EU is serious about Turkey's negotiations to join the bloc.
78.7m
Population
11.1% Unemployment
2.75m Syrian refugees registered with UN
151 out of 180 countries on World Press Freedom Index
The EU is already moving towards granting visa-free travel to nationals of Kosovo, Georgia and Ukraine. That makes it harder to justify leaving Turkey out - especially as those countries are not yet candidates for EU membership, unlike Turkey.
Under the EU-Turkey agreement, migrants who have arrived illegally in Greece since 20 March are to be sent back to Turkey if they do not apply for asylum or if their claim is rejected.
For each Syrian migrant returned to Turkey, the EU is to take in another Syrian who has made a legitimate request.
Under the agreement, Turkey must meet 72 conditions by 4 May to earn visa-free access to the Schengen area by the end of June. Diplomats have suggested that fewer than 10 still need to be met.
Human rights groups question the deal's legality and argue that Turkey is not a safe place to return people to.
Last month, however, European Council President Donald Tusk said the deal had begun to produce results.
He praised the Turkish government as "the best example in the world on how to treat refugees".
Concerns have been raised in the European Parliament that this looks like a reward for Turkey, because of its co-operation in the migrant crisis. Ankara falls short of many EU human rights benchmarks.
MEPs accept that Turkey is a "key strategic partner" for the EU. But they say reforms have slowed down in Turkey in many areas, including freedom of speech and judicial independence.
MEPs voiced concern about continuing fighting in south-eastern Turkey between government troops and Kurdistan Workers' Party (PKK) rebels, whom the government in Ankara describes as "terrorists".
The European Commission's 2015 report on Turkey also complained of politicisation of the Turkish judiciary, widespread corruption, inadequate protection of minority rights and "significant backsliding" on freedom of speech and assembly.
12,325
Total number of migrants who crossed the Mediterranean
59%
fewer than April 2015
9,116 Migrants arrived in Italy by sea in April 2016 - down from 16,063 in the same month last year
3,209 Migrants arrived in Greece by sea in April 2016 - down from 13,556 in April 2015
On the plus side, however, the Commission says Turkey has improved conditions for the many Syrian refugees it is hosting - some 2.75 million. It praises Turkey for providing Syrians with access to jobs and schooling for their children.
It also says Turkey is tightening up its admission rules for migrants from countries which "are sources of significant onward migration" to the EU. Afghanistan, Iran and Pakistan are among those countries.
Many nationalities can already visit Europe's Schengen zone visa-free, including nationals from Latin America and the Caribbean, Hong Kong and South Korea.
A note on terminology: The BBC uses the term migrant to refer to all people on the move who have yet to complete the legal process of claiming asylum. This group includes people fleeing war-torn countries such as Syria, who are likely to be granted refugee status, as well as people who are seeking jobs and better lives, who governments are likely to rule are economic migrants.


A further two people have been arrested in connection with the fatal shooting of a man in Liverpool.

Mark Hillman, 26, was shot twice in the back and found on a pavement in Lloyd Close, Everton, on 27 April.
A 19-year-old from Anfield has been arrested on suspicion of conspiracy to commit murder.
A woman, 43, also from Anfield, was held on suspicion of assisting an offender. Both have now been bailed pending further inquiries.
Three people previously arrested over Mr Hillman's death have also been released on bail.


Retired police officers who served in South Yorkshire in the 1980s have been told to be proud of their work, despite the Hillsborough inquests' verdict.

A message on a website for the force's retired officers said they had served dedicated and courageous careers.
The force's current chief constable was suspended on Wednesday because of the approach the force took to the inquest.
A statement by the retired officers said they were "proud" 200 of them had co-operated with the proceedings.
After hearing more than two years of evidence, jurors concluded the 96 victims of the disaster were unlawfully killed and there were police failings.
They found Liverpool fans were not to blame for what happened.
Five myths rejected by the jury
Hillsborough: What's next?
Police chief's role in the disaster
The 96 who died
The message on the website of the South Yorkshire branch of the National Association of Retired Police Officers (Narpo) was made public by accident.
In the message, South Yorkshire Narpo secretary Rick Naylor said former officers had "great sympathy" for the families and friends of the victims killed.
"Mistakes were made and we would all like to turn the clock back," he wrote.
But despite criticism of the force in the wake of the jury's conclusions, his message pointed out "there were many examples of outstanding actions and selflessness by police officers on that tragic day as they did their best to deal with the disaster unfolding before them".
Mr Naylor said in his message that the group had tried to remain dignified while "bile and hatred" was directed towards the force.
He said South Yorkshire Police had faced "immense challenges" in the 1980s, including Hillsborough and the Miners' Dispute.
"Along the way we caught the Yorkshire Ripper!" he wrote.
"You will be feeling sore, angry and disheartened, but you did a good job - we all did," he added.
The comments were later removed from the website and Mr Naylor said they had not been intended for public consumption and were not designed to offend.
He was a co-signatory on a later press statement by the group, which said that many of the force's former officers - some of them elderly and in failing health - had voluntarily travelled to Warrington to give evidence at the inquests.
Many of them had also made statements to the Independent Police Complaints Commission and Operation Resolve, a criminal investigation into the disaster, the statement added.
"This was completely voluntary as there was no legal obligation to submit themselves for interview."
Jurors at the inquests pinpointed police failures before and after the 1989 FA Cup semi-final between Liverpool and Nottingham Forest.
On Tuesday, after their conclusions were delivered, chief constable David Crompton admitted the policing of the match was "catastrophically wrong" and "unequivocally" accepted the findings.
The next day, the force's Police and Crime Commissioner Dr Alan Billings said there had been an "erosion of trust" and he had no choice but to suspend Mr Crompton.
Speaking in the House of Commons on Wednesday, Shadow Home Secretary Andy Burnham accused the force of "retelling discredited lies" during the inquests.
The MP, who has backed the campaign for justice for the Hillsborough victims, said lawyers representing retired officers "threw disgusting slurs" about victims in court.
Families of those who died have called for criminal prosecutions to follow the hearings.
Two ongoing investigations into the disaster and its aftermath could finish by the end of this year.
A police inquiry is looking at the lead-up to the crush on the day of the match, while a separate inquiry by the Independent Police Complaints Commission (IPCC) is investigating allegations of a cover-up.


World number one Lydia Ko birdied her last hole to establish a one-shot lead going into the final round of the US Women's Open in California.

Ko, 19, was in a group of players at six-under on the 18th tee, but rolled in a nine-foot birdie putt for a 70.
The New Zealander is one clear of overnight leader Sung Hyun Park (74) and Eun Hee Ji (70), both of Korea.
England's Jodie Ewart Shadoff and Scotland's Catriona Matthew are tied for 20th place on level par.
Ko was tied for 52nd place after an opening 73 at CordeValle, but a second-round 66 moved her into contention and three birdies on Saturday edged her into the lead.
"People say it's moving day on Saturday, but it was really tough out there because the course is drying out, firming up," Ko said.
"In major championships, sometimes a par is a good score and you have to walk off and forget about the bad shots."


A core group of "superfans" are the bedrock of the UK's festival scene, attending four or more events a year, research suggests.

They spend an average of Â£581 a year on music festivals, often opting for VIP passes or upgraded camping options.
Predominantly male, the "superfans" are also more likely than most consumers to buy music on CD or as downloads.
The results came from a survey of 504 UK residents, who had attended at least one festival in the last year.
According to ticketing website Eventbrite, which commissioned the survey, these "superfans" help to "drive the music festivals market", often recommending music and events to their friends.
They account for 28% of the festival-going audience, and more than half of them (54%) say they would be willing to attend an event alone.
On average, they spend Â£45 more per event than a casual fan, but their loyalty is not guaranteed: 46% say that festivals are becoming "too corporate".
There are more than 100 music festivals held in the UK every year, from the likes of Glastonbury and T In The Park, to smaller events such as the Cambridge Jazz Festival and Jamie Oliver's Big Feastival.
In total, 3.7 million people attend festivals every year, according to Music UK, accounting for more than 39,000 full-time jobs.
However, small profit margins and a crowded market have seen some events struggle. In the wet summer of 2012, 57 festivals were forced to cancel - with the likes of Oxegen and The Big Chill shutting their doors.
Although the rate of closures has slowed since then, several events - including the Temples festival in Bristol, Down To The Woods in Sedgefield and Field Day in Tunbridge Wells were called off this year; while Sonisphere failed to return from a planned hiatus in 2015.
The latest research offers some reassurance to organisers though, with 88% of respondents saying they planned to attend a festival again next year - with more than half of them saying they would go to more.
"It has been a challenging year for some festivals, with inclement weather conditions, general economic uncertainty following Brexit, rising expenditure and heightened security concerns," said Paul Reed, who runs the Association of Independent Festivals.
"This research illustrates that the sector remains buoyant, that festival promoters are resilient and will continue to craft unforgettable experiences for audiences, who are keen to return year on year to their favourite events."
Follow us on Twitter @BBCNewsEnts, on Instagram at bbcnewsents, or email entertainment.news@bbc.co.uk.


A hot-air balloon was forced to land in the middle of a street in Northampton after the wind suddenly dropped.

24 June 2014 Last updated at 13:24 BST
When pilot Matt Rate noticed the lack of wind, he called his crew on the ground to let them know he was planning to come down.
He originally planned to land in a nearby park but was at risk of hitting a tree, so decided to land on the street.


Great Britain head coach Bobby Crutchley says fringe players can use the World League Final as a chance to stake a place in his Olympic squad.

Several experienced players, including captain Barry Middleton, are being rested for the trip to India.
"It's not the biggest tournament but it's certainly a key one for us," Crutchley told BBC Sport.
"It allows me to look at some players with an eye on who's going to be pushing for Rio places next August."
Crutchley has taken a squad of 18 to the event in Raipur, where they have been drawn in Pool A along with world number ones Australia, Canada and Belgium.
GB's first game is on Saturday, 28 November against the Canadians.
"Guys who've played a lot of international tournaments over the last few years, we've left a lot of them at home," said Crutchley.
"We have 29 full-time athletes on the programme so it allows me to look at the broader squad against the best in the world and see whether they might be pushing for Rio places come August next year."
Among the rookies is forward Alan Forsyth who made a scoring debut for Great Britain in October against Argentina.
"It'd be a dream come true if I could play for Team GB at the Olympics," said Forsyth.
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"This tournament is important with Rio coming around but the main thing is to get to know the team more and make myself better. Then, never say never."
The event in the central Indian city of Raipur is the culmination of qualifying rounds played over the last two years. Hosts India, Netherlands, Germany and Argentina make up the other pool.
GB women take part in their World League Final tournament in Rosario, Argentina, from 5-13 December.


Hundreds of homes in Winchester were left without water or with low pressure on Sunday after a water main burst.

Southern Water initially said 1,000 properties were affected for about four hours in the South Wonston area.
It later clarified that the same pipe was also damaged on Saturday evening, about 100 yards further along, with some customers cut off for 16 hours.
The water main in a field on Lower Stoke Road had "quite a long split along it", a spokeswoman said.


The Football League has voted to restrict the use of overseas loans after Championship club Watford brought in 10 players from Udinese last season.

Watford, whose owners also own the Italian side, came within a game of promotion, losing the play-off final.
The Football League has limited match-day squads to five loanees, with four from any one club - in line with quotas for domestic loans.
Currently overseas loans are regarded as full transfers, so not limited.
A spokesman for the Football League said, "The proposal was voted for unanimously."
The influx of players from Udinese and Granada, who are also owned by the Pozzo family, into Watford's ranks was  after the two teams had drawn 2-2 in February.
The Hornets had named seven loan players in their squad for the match, but only Nathaniel Chalobah, on a temporary deal from Chelsea, counted towards their official loan quota.
Their line-up also included Czech striker Matej Vydra, on loan from Udinese, who scored 22 goals en route to landing the Championship Player of the Year award.
"That gives a licence to people to buy English clubs, chuck all their players over here and have a reserve team," said Holloway at the time.
"What if Barcelona wanted to buy us and play their 'B' team for us? We've got to sort this out."
Watford, who are currently under a transfer embargo until 31 August because of their previous owners' financial irregularities, have said they  will try to secure the best of their loan players on a permanent basis for next season.
The Football League, which appointed a working party to look at the issue following complaints, required 51% of their 72 members to vote in favour to change the rules.


Theresa May and Donald Trump have agreed on the importance of Nato in their second phone conversation since the US election, Downing Street said.

The British PM and US president-elect discussed the need for more countries to commit to spending 2% of national income on defence, Number 10 said.
They also agreed their national security advisers would meet in the US before the end of the year.
And they said they would meet in person "at the earliest possible opportunity".
During his election campaign, Mr Trump was critical of Nato, describing the Western military alliance as obsolete.
He suggested that the US would think twice about coming to the aid of any Nato ally under attack if it had not paid its "fair share".
The UK, which meets the commitment to spend 2% of GDP on defence, has also been urging other countries to increase their contribution.
Downing Street said the call by Mrs May to Mr Trump would be part of "establishing a regular dialogue between both of them".
The UK government has rebuffed suggestions from ex-UKIP leader Nigel Farage - who has already been invited to meet Mr Trump - that he could help to establish relations between the two governments.
The US president-elect also suggested Mr Farage be made the UK ambassador to the United States - a suggestion that was rejected by Downing Street.


A teenager has pleaded guilty to planning a terror attack on Anzac Day in Sydney.

The boy, who was 16 at the time of his arrest last year, faces up to life in jail. Police alleged he tried to obtain a gun and bomb-making instructions.
It was the second time Australian police have intercepted a terror plot targeting the national holiday.
Anzac Day commemorates the first major battle involving Australian and New Zealand forces during World War One.
At the time of his arrest last year, the teenager had left school and started a trade apprenticeship.
"A plea has been entered and the matter is on its way to finalisation," his lawyer, Upol Amin, said on Friday, according to the Australian Broadcasting Corp.
The case will return to Parramatta Children's Court next month.
In 2015, a 15-year-old British boy was sentenced to life in prison for plotting to behead police officers at an Anzac Day parade in Australia.


Floyd Mayweather made it 49 straight wins with a wide points victory over Andre Berto in Las Vegas.

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The challenger was game but his fellow American, defending his WBC and WBA welterweight titles, was simply too difficult to hit at the MGM Grand.
Mayweather, 38, was awarded the verdict 120-108, 118-110 and 117-111.
Mayweather was adamant it was his last fight, but having equalled Rocky Marciano's career record of 49-0, he might decide to have one more.
"My career is over, that's official," said five-weight world champion Mayweather, widely regarded as the greatest fighter of his generation.
"You've got to know when to hang them up. I'm close to 40 now. There's nothing left to prove in the sport of boxing. Now I just want to spend time with my family.
"I am leaving the sport with all my faculties, I'm still sharp and smart. I've accomplished everything in this sport, there's nothing else to accomplish."
The 32-year-old Berto is a two-time welterweight world champion and came into the fight having lost only three of his 33 professional bouts.
But those three defeats came in his previous six contests and pretty much nobody gave him a chance against Mayweather, who was engaging in his 26th world title fight and whose unbeaten streak goes back to 1996.
The pattern for the fight, as with so many of Mayweather's previous fights, was set in the opening round, the champion establishing his lightning jab and repeatedly making Berto miss.
Mayweather went on the back foot in the second but Berto was chasing shadows, before the champion came out punching in the third, catching his rival cold with a snapping left hook.
After the first nine minutes of action Berto had barely laid a glove on Mayweather, and Mayweather made the challenger's knees sag with a flashing overhand right with a minute left in the fourth.
Berto continued to venture forward in the fifth but even when he managed to manoeuvre Mayweather onto the ropes, he was unable to land with any meaningful blows.
Berto might have done enough to win the sixth and certainly won the seventh, during which he landed with a clubbing left hook.
Mayweather was happy to coast through the eighth, winning it on the back foot while drawing boos from the crowd as he mugged on the ropes.
A fight broke out towards the end of the ninth, with both men trading blows on the bell, and the rivals were broken apart and warned for trading words in the 10th.
Mayweather looked like he might open up in the 11th, landing with a cute uppercut, but he was showboating again towards the end of the round.
And the fact there were boos ringing around the arena as the final round was drawing to a close rather summed up Mayweather's career - to many he is a genius, but he leaves many more boxing fans cold.
Mayweather made $34m (£22m) for his latest outing but few expect him to fulfil his promise to retire.
MGM's new arena opens next April and a rematch against Manny Pacquiao, whom Mayweather beat in May in the richest fight in history, or against the winner of Miguel Cotto-Saul Alvarez might prove too tempting to turn down.
Speaking in a 45-minute post-fight news conference, Mayweather said: "I had a game plan from the very beginning. I always knew what I wanted to do - be outspoken, be one of a kind. To be in the sport for 19 years and to be world champion for 18 years, I've had a remarkable career.
"It's all about that IQ. I'm 10 steps ahead of any fighter, I take whatever is your best attribute and take that away from you, make you do what you don't want to do.
"Every champion - Muhammad Ali, Sugar Ray Robinson, Sugar Ray Leonard, Larry Holmes, the list goes on and on - they opened up the doors and paved the way for where I am today and I'm appreciative.
"But now the young fighters say, 'We want to be like Mayweather'. It's not cool to take punishment in the ring. I'm not perfect but I strived to be a perfectionist."


More than 13,000 people have been tested for drink and drug driving in north Wales the run up to Christmas, police said.

North Wales Police added that from those tests, 60 arrests were made.
It follows a report earlier in December which said motorists are more likely to be tested for drink driving in north Wales than anywhere else in the UK.
Det Ch Con Gareth Pritchard warned motorists not to be tempted to drink and drive.
He said: "Officers will continue to carry out breath tests across north Wales as part of our campaign to reduce deaths on the roads."


The UK cinema premiere of a documentary about famous street artist Banksy is to be held in Aberdeen.

Saving Banksy explores attempts to preserve and profit from the anonymous Bristol artist's work.
The premiere is being held on Saturday 15 April at the Belmont Filmhouse, as part of the NuArt Aberdeen festival.
Belmont manager Colin Farquhar explained: "Banksy is a cultural phenomenon and we are sure the showing will be popular."
Banksy's images are daubed on walls around the world, and are worth vast sums of money.
James Finucane, general manager of the NuArt Festival, said: "Saving Banksy has received widespread critical acclaim since its release in the US earlier this year.
"It's a great coup for Aberdeen and a fascinating insight into current debates about street art practice and the traditional art establishment's efforts to remove the 'street' from 'street art'."
NuArt Aberdeen has been brought to the city by Aberdeen Inspired and Aberdeen City Council.
Adrian Watson, chief executive of business-led initiative Aberdeen Inspired, said: "Banksy symbolises the debate that goes on around street art and this film is a brilliant platform for discussion.
"We want to get people talking about art and bring it to a new audience in the city and are hugely looking forward to the premiere."


Plans by a company that wants to put 64,000 chickens on an area of outstanding natural beauty in Kent have been met with anger by local residents.

Fridays Ltd, which produces thousands of free range eggs in Cranbrook, wants to expand its operation in Horsmonden.
Residents fear the extra traffic and noise from the 32-hectare site will have a detrimental impact on the area.
The company said it was responding to a 5% year-on-year increase in demand for free range eggs.
The family-run business is one of the three biggest egg producers and packers in the country.
If agreed, its new chicken farm would be located at Pullens Farm, in Lamberhurst Road, which is on the outskirts of the village of Horsmonden.
Resident Sarah Overton said: "The sheer scale of this development is extraordinary.
"We're talking the equivalent of 80 football pitches, 64,000 birds at any one time producing 360,000 eggs a week, using mechanical processes and only needing one full-time person to look after them, and three part-time egg collectors.
"It equates to industrialisation in the countryside, which is bad enough, but this is industrialisation of an area of outstanding natural beauty with protected species that we all need to be careful to preserve," she said.
Fridays Ltd has lodged its application with Tunbridge Wells Borough Council, with a provisional decision expected in August.
Horsmonden Parish Council is discussing the plans on Monday.


Belfast Chamber of Trade and Commerce has called for bus lanes to be scrapped in certain areas of the city.

They proposed to remove the "non-Belfast Rapid Transit system (BRT) related bus lanes as an experiment."
Infrastructure Minister Chris Hazzard said: "I will happily meet anybody who can evidentially show bus lanes are "bad for business".
But the proposals have been criticised by cycling charity Sustrans, which called them "retrogressive".
BRT is the system which will link the city centre to west and east Belfast and the Titanic Quarter.
It is due to be operational by 2018.
The concerns arose at a briefing at the Committee for Infrastructure on Wednesday 7 December.
President of the Chamber of Commerce, Gordon McIroy told the committee: "Our members and the people who deal with them are most concerned about the amount of confusion that is being created by the bus lanes in Belfast.
"They are concerned that the bus lanes are operating at different times.
"It does not mean that there should not be bus lanes or lanes set aside for specific types of traffic to improve transport flow.
"We really support the introduction of Belfast rapid transit, and the bus lanes that serve it should be there.
"We propose to the department that it be more radical and remove the non-BRT-related bus lanes as an experiment, as was done in Liverpool, where it was found that traffic was freed up and moved much more easily through the city."
The move has however, been criticised by Gordon Clarke, Northern Ireland Director for the charity Sustrans, who  expressed concern at the proposal.
"Removing bus lanes is a retrogressive step especially when many of these bus lanes will be required for the future proposed expansion of the Belfast Rapid Transit network," he said.
"Bus lanes are also protected routes for cyclists and are therefore vitally important for bike commuters until such times as there is better infrastructure.
"Removing bus lanes and encouraging more cars in the city centre will cause air quality to deteriorate further and is off-putting for people living and working in the city."
The concerns were first published in an article written by nigreenways.
Minister Chris Hazzard said: "In modern cities with efficient public transport systems bus lanes are the norm.
"Bus lanes are an important element in keeping city traffic flowing well and a vital benefit for the many thousands of users who opt to travel by bus to school, work or for pleasure. Filling one bus with passengers equates to the removal of around 50 cars from our roads, that is a queue of cars about 1/3 km long.
"Increasing the use of public transport and active travel is a fundamental element of the Programme for Government.  Belfast Rapid Transit,  an Executive flagship project is a multi million pound investment in sustainable transport and will deliver high quality public transport services.
"In developing the detailed designs for the BRT system, the Department has sought to balance the needs of all those using the route and we will continue to work with the many stakeholders to the BRT project to ensure that we deliver the best possible outcome for the people of Belfast."


"I turned professional at the same time as Steve Davis - that didn't help a lot!"

Terry Griffiths was snooker's World Championship winner in 1979, Masters winner in 1980 and UK Championship winner in 1982, but is able to look back with a smile on the occasions Davis foiled his attempts to lift more major titles.
The 69-year-old Welshman retired in 1997 yet can still be found in practice halls at many of the main events coaching today's stars.
China's Ding Junhui, Northern Ireland's Mark Allen and England's Michael Holt are three who currently glean tips from the man who was once a postman in Llanelli.
With the Scottish Open in Glasgow from 12-18 December, Griffiths took time to answer some of BBC Scotland's questions.
"It's peaceful. People can have their cup of tea in the interval and still watch the snooker.
"The sportsmanship is very strong in snooker, people like to see people dressed correctly, then there is the competition and everybody loves watching competition.
"It can be boring at times but every sport can be boring - you look at football now and there are more 1-1 or 0-0 draws, but people still watch it. The game is still very popular and the standard of snooker now is incredibly good."
"People in Scotland are still very interested in snooker.
"They've still got John Higgins who is as good as anybody at the moment - Alan McManus as well - and there are quite a few young players coming through.
"Stephen Maguire's still a good player; so Scotland hasn't finished - a long way from it."
"Everybody likes to move a ball; whether it's a golf ball, a football, a tennis ball, a cricket ball, a rugby ball - all these things are about moving things. In snooker it's more peaceful; it's one-to-one.
"In my club I had a private room which I used to play snooker in. If anyone was to go in that room that had never played before, and you lock the doors, they will pick the cue up and move the balls around the baize.
"That's what the game is about - it's not about winning World Championships."
"About three months after I won the World Championship, I was driving up the M6 in the pouring rain going to this exhibition.
"I had a friend with me and he said 'You know Terry, it doesn't matter where you go or where you look; you are the champion'.
"I always remember him saying that and it was the first time I realised I was the champion of the world."
"I knocked the world snooker globe off the pedestal when I was playing Steve Davis in the final in 1988.
"It was quite funny and at the time he was beating me, but I still laughed. I was used to him beating me!"


Mae cynlluniau i greu prosiect hydro-drydanol ar rannau uchaf Afon Tywi wedi ysgogi pryderon gan bysgotwyr yn yr ardal.

Bwriad cwmni Hydro Electric Development yw codi cynllun hydro-drydanol ar draws Afon Tywi yn Ystradffin ger cronfa ddŵr Llyn Brianne, ynghyd â phwerdy bychan, tyrbin a generadur gerllaw.
Yn ôl y cwmni, gallai'r cynllun gynhyrchu 1800kW o drydan o ynni glân.
Mae hi'n fenter ar y cyd rhwng un o gwmnïau hydro-drydanol mwyaf blaenllaw Ewrop, Grŵp Renfin ac arbenigwr ar gynlluniau hydro, Ewan Campbell-Lendrum.
Mewn llythyr at y cyngor, mae Ffederasiwn Pysgotwyr Sir Gâr wedi codi pryderon am effaith posib y cynllun ar eogiaid sy'n mudo.
Yn ôl y ffederasiwn, mae hi'n "anodd diffinio" faint o lif sydd ei angen ar gyfer pysgod sy'n ceisio symud i fyny ac i lawr yr afon.
Mae pryder hefyd ynglŷn â'r effaith posib ar niferoedd y pysgod, a'r angen am gynllun i fonitro niferoedd os yw'r cynllun yn cael ei ganiatáu.
Yn ôl y pysgotwyr, dylai'r datblygwyr hefyd ddarparu arian i wella pysgodfeydd yn yr ardal.
Maen nhw'n galw ar bysgotwyr yr ardal i wrthwynebu'r cais, gyda'r ymgynghoriad yn dod i ben ar 1 Chwefror.
Mewn datganiad, dywedodd cwmni Hydro Electric Development bod "lleoliad y cynllun wedi'i ddewis yn ofalus er mwyn sicrhau nad yw'n cael effaith andwyol ar yr amgylchedd".
Dywedodd un o ymgynghorwyr y cynllun, Adam Cropper: "Mae arbenigwyr ar fioleg ac ecoleg pysgodfeydd wedi cael eu comisiynu i gynnal arolygon, ac i wneud argymhellion ar sut i amddiffyn yr amgylchedd lleol.
"Mae'r astudiaethau gwyddonol yma wedi caniatáu i ni ddatblygu mesurau arbennig, er enghraifft pryd i ryddhau dŵr er mwyn cynorthwyo sewin ac eogiaid i fudo.
"Mae Cyfoeth Naturiol Cymru wedi gosod rheolau ar reoli dŵr er mwyn sicrhau nad oes effaith niweidiol ar yr amgylchedd, ac mae'r manylion hynny i'w gweld yn ein trwydded echdynnu dŵr, sydd i'w gweld ar wefan Cyfoeth Naturiol Cymru.
"Mae rhannau uchaf Afon Tywi yn parhau i fod yn ardal o bwysigrwydd ecolegol, ond gall wneud cyfraniad i fynd i'r afael â newid hinsawdd."
Bydd y cais cynllunio yn cael ei ystyried gan Gyngor Caerfyrddin wedi i'r ymgynghoriad ddod i ben.


The Yorkshire Party has demanded the setting up of a parliament for the county in its election manifesto.

The party launched the document in Wakefield and said it is fielding 21 candidates, up from the 14 it had in the 2015 election.
Stewart Arnold, the party's leader, said it wanted to "invigorate the often stale, tribal politics we have in Yorkshire".
Mr Arnold said the amount of devolution Yorkshire had received was "nothing".
Live updates and more stories from Yorkshire
It describes itself as a progressive political party campaigning for Yorkshire devolution.
"The transfer of real and meaningful powers from London to Yorkshire is the key to a better economy, better education, better housing and better democracy", he said.
Mr Arnold said the party would be campaigning "across the three Ridings".
Its manifesto claimed Yorkshire has a larger population than Scotland, an economy twice that of Wales and covered a bigger area than Greater London.
Two major parties have also chosen West Yorkshire for their manifesto launches.
The Conservative Party had earlier launched its document in Halifax.
Meanwhile, the Labour party launched its pledges in Bradford, on Tuesday.
Professor Martin Smith, from the University of York, said Yorkshire was being seen as a "central battleground" for the two parties.
"It is a crucial part of the campaign for both parties as they want to show that they are not just parties of the south but of what they see as ordinary working people," he said.
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Other Yorkshire Party pledges include "protection of greenbelt and a green Yorkshire" and "investment in our county's infrastructure".


Canadian singer, songwriter and poet Leonard Cohen died in his sleep after falling during the night at his Los Angeles home, his manager has said.

The 82-year-old singer's death was "sudden, unexpected and peaceful", Robert B Kory said in a statement.
No cause was given by the family when Cohen's death was announced last week.
The statement said that Cohen died on 7 November - three days before an announcement was made to the public. He was buried in Montreal on 10 November.
"With only immediate family and a few lifelong friends present, he was lowered into the ground in an unadorned pine box, next to his mother and father,'' the singer's son Adam Cohen wrote last week.
Leonard Cohen's representatives say a memorial in Los Angeles is being planned.
Canadian Prime Minister Justin Trudeau led worldwide tributes to the singer, who was known for songs including Hallelujah, Suzanne, Bird on the Wire and I'm Your Man.
He released his 14th album, You Want It Darker, just last month.


A pensioner from south Wales is at the centre of a police hunt after vanishing during a coach holiday to the Isle of Wight.

Michael Davies, 71, had been staying at a hotel with his wife at the holiday resort when he disappeared.
The couple, from Blaina, Blaenau Gwent, had travelled to Sandown on the island by coach, Hampshire Constabulary said.
But Mr Davies, who suffers from high blood pressure, has not been seen since the early hours of Wednesday.
The force said Mr Davies wandered off after dinner at the Hotel Maria in Sandown at 21:30 BST and CCTV images later show the him less than half a mile inland from the seaside hotel.
A police spokesman said: "We are growing increasingly concerned for the welfare of a 71-year-old man.
"Having reviewed CCTV it appears that Michael was in the Avenue Road area of Sandown just before 01:00 on Wednesday morning."
Police said the pensioner's family were worried because Mr Davies relies on medication to control his blood pressure, which he would not have access to.
He is described as white, with cropped white hair, and wearing a blue tee-shirt, blue Reebok jumper, jeans and a baseball cap.