A court ruling has shed light on the content of the thousands of secretive FBI national security letters sent to internet companies every year.

The court papers show the letters can demand the browsing and online purchase histories and IP and email addresses of customers the FBI is investigating.
The FBI has not responded to a request for comment from BBC News.
US district judge Victor Marrero, sitting in New York, ruled the content of a 2004 letter should be made public.
Its recipient, Nicholas Merrill, the founder of the now-defunct Calyx Internet Access company, took legal action against the US attorney general and the FBI.
And after an 11-year legal battle, Monday's ruling revealed the FBI had requested access to "records relating to merchandise orders/shipping information", as well as browsing information and any email addresses and online screen names associated with the person they were investigating.
The letter also asked for the target's "DSL account information", "Internet Protocol (IP) address" and "day/evening telephone numbers".
The government had argued revealing the letter's content would give too much information to suspects and cause them to change their behaviour.
But the judge ruled there was no "good reason" to keep it secret.
After the ruling, Mr Merrill said: "The public deserves to know how the government is gathering information without warrants on Americans."
The frequency and breadth of national security letters, which were introduced in the 1970s, expanded under the USA Patriot Act, which was passed shortly after the 11 September 2001 attacks.
The letters are usually accompanied by an open-ended gagging order that bars companies from disclosing their contents.
Last year, the US government announced it would permit internet companies to disclose more about the number of national security letters they received.
But they can still only provide a range, such as between nought and 999 requests or between 1,000 and 1,999.
And Twitter has brought legal action seeking the ability to publish more details in its semi-annual transparency reports.


It will be another big day for the north west of England when Liverpool meet Manchester City in the League Cup final at Wembley on Sunday.

But, four and a half hours earlier, there will be plenty at stake when two of BBC Radio Merseyside's other clubs - Chester and Tranmere Rovers - meet for a noon showdown at Bumpers Lane.
The two clubs have met regularly since November 1931, the season after Chester entered the Football League. Yet, until Chester's trip to Prenton Park in September when Rovers comfortably won 2-0, they had not played each other in 24 and a half years.
This will be Rovers' first West Cheshire derby trip to Chester since the Deva Stadium first opened in 1992 - and it will, in fact, be a third successive different venue for a Tranmere away game with Chester.
The last time they played an away game against Chester, it was during the club's two-year exile in Macclesfield, at the Moss Rose in March 1991.
Prior to that was a 2-2 draw at Sealand Road, in what was Chester's penultimate game at their home of 84 years.
After coming from 2-0 down to draw 2-2 with Kidderminster Harriers on 20 February, having won 3-0 at Altrincham four days earlier, Chester appear to be back on an upturn.
New signing James Alabi came off the bench to hit a brilliant equaliser at Aggborough, which hints at more to come.
Chester, 15th in the National League, are 15 points behind Tranmere, who are sixth and just one point adrift of the play-off places.
Their 1-0 home defeat by leaders Cheltenham was a first defeat for Gary Brabin's experienced side in six games.
Burr on Chester's 'other derby'
"If you can't get up for a game like that you might as well not be playing," Chester boss Steve Burr told BBC Radio Merseyside. "It should be a fantastic atmosphere.
"I wouldn't say it's as big as the Wrexham game because I know how much the Wrexham game means to the Chester fans, with all due respect to Tranmere.
"But Tranmere are still a big club who have aspirations of getting out of this division, with a very experienced squad. And it's still a great one for the fans, with all the bragging rights and all that.
"If I was a player I'd have spent the week getting in the gaffer's face saying: 'I want to be in that team, I want to be out there playing in front of a sell-out 6,000."
Tranmere manager Brabin is a former Chester player, from the old club's last time in English football's fifth division.
Chester captain Ian Sharps is a former Tranmere Rovers favourite, having started his career there.
There are also a host of connections to Merseyside's two main clubs:
Estimates vary for the sort of crowd that Chester might expect on Sunday, but club secretary Tony Allan, first associated with the club a quarter of a century ago, says: "Let's just say it will be a bumper gate."
Tranmere had their season's highest crowd of 7,433 (not far off 3,000 up on this term's average gate) when they beat Chester 2-0 at Prenton Park in September.
Having already sold all their tickets at the away end, Chester expect to pass their season's best gate so far - 3,741 for the Wrexham game in October.
Local rivals Wrexham also attracted 4,326, the biggest Conference gate yet attracted to Bumpers Lane since Conference football returned to the city in 2013 for the reformed club.


Britain's Johanna Konta and Laura Robson went out of the French Open first round without winning a set.

Konta, the British number one and 20th seed, was outclassed 6-2 6-3 in 64 minutes by Germany's Julia Goerges.
Robson, who has been beset by injuries over the past two years and fallen to 329 in the world rankings, lost 6-2 6-2 to German 28th seed Andrea Petkovic.
Their defeats mean Heather Watson is the only British woman through to the second round in Paris.
Konta's rapid rise up the rankings came on the back of upsets at the US Open, where she reached the fourth round, and Australian Open, where she made the semi-finals.
She went into the year's second Grand Slam with hopes of another lengthy run but world number 57 Goerges played an exceptional match.
The German, who was once ranked in the top 15, crunched 30 winners in the match compared to just four from Konta.
"I try to always do a really good job of leaving my work on the court. No one died. I'm healthy," said Konta.
"I'm not going to beat myself up too much. I think it's always important to be kind to yourself."
Robson used her protected ranking of 58 to play in Paris but that runs out next month, meaning she will need a wildcard to get into Wimbledon.
Her ability to hit winners remains but too often the 22-year-old relied solely on her power and a tally of 37 unforced errors in 16 games against Petkovic told its own story.
Robson, playing at Roland Garros for the first time since 2013, will now hope for some morale-boosting wins on grass to help her move up the rankings.
Since 2014 and the start of the wrist problems that have derailed her career, Robson has not beaten a top-100 opponent.
"It's hard to be positive right now. I feel like I had a lot of chances," she said after her defeat.
"There were a lot of games that went to deuce, and it was also my brain switching off at deuce every time, which sucks really.
"I don't want to be ranked 300 for very much longer. I have top 100 as a goal, then see where I go after that."
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A loaded handgun was given to Mark Duggan 15 minutes before he was shot dead by police in Tottenham, north London, last year, a court has heard.

Details emerged as the prosecution opened its case against Kevin Hutchinson-Foster, 30, who denies a charge of supplying the weapon.
Snaresbrook Crown Court heard Mr Duggan, 29, had travelled by cab to Leyton to collect the gun.
His death sparked riots in London which spread across England in summer 2011.
Edward Brown QC told the court that a handgun found on 4 August on a grass bank in Ferry Lane, Tottenham Hale, north London, had been in Mr Duggan's possession.
Mr Brown said Mr Duggan travelled by minicab to the area where a girlfriend of the defendant lived to collect the gun, which was hidden in a shoebox.
After the handover, Mr Duggan carried on towards Tottenham Hale with the gun, taking it out at some point during the journey, the court was told.
"It was not long into this second part of his journey that the minicab with Mark Duggan inside was stopped by police.
"There in Ferry Lane Mark Duggan was shot and fatally injured by the police as a result of his possession of that gun and what he was thought to be about to do with it," Mr Brown said.
He told the jury that armed police surrounded the cab but as Mr Duggan got out he was seen to have a gun in his hand.
"The police marksmen were in no doubt that this was as dangerous a position as possible - gun in hand - and he was seen to start to bring it round as if to shoot.
"The gun was found to be loaded with a bullet, as you know and as you will see in photographs. He was shot."
The court heard the gun, a BBM Bruni Model 92 handgun with one bullet in it, was found near the scene of the shooting.
Mr Brown said it was in a black sock which was ripped at the toe to expose the barrel of the gun and at the heel so the cocking lever was showing. It had been modified to take live 9mm bullets.
Mr Duggan's fingerprints were found on the shoebox which was recovered from the boot of the minicab, jurors heard.
Mr Brown told the court telephone data showed Mr Duggan and the defendant had been in contact.
He said the defendant lied to police about his possession of the gun and about his links to Mr Duggan.
"He provided a dishonest explanation as he hoped it would avoid his true responsibilities, say the Crown, in respect of the gun and its supply by him to Mark Duggan," Mr Brown said.
Mr Brown told the court there was a "breadth of evidence" supporting the case that Mr Hutchinson-Foster supplied the gun to Mr Duggan and that it was the same weapon used by Mr Hutchinson-Foster during a fight with a man a week earlier.
Blood from both Mr Hutchinson-Foster and the person involved in the fight was found on the gun and sock, he said.
Mr Brown told jurors it was not their task to decide "one way or the other the rights and wrongs of the shooting of Mark Duggan" and that those "tragic events" were for the inquest next year to determine.
Mr Hutchinson-Foster, of no fixed abode, denies selling or transferring a prohibited firearm to Mr Duggan between 28 July and 5 August last year.
The trial continues.


A US court has given Volkswagen until 21 April to come up with a plan to fix 600,000 cars that emit illegal levels of pollution.

The US District Court Judge said: "This issue of what is to be done with these cars must be done by that date."
If a plan is is not in place by the deadline the court will consider what action to take.
VW said it was committed to resolving the US investigation "as quickly as possible".
In September last year, US authorities revealed that VW had used computer software to massage emissions data during tests, sparking the biggest crisis in VW's history and leading to the departure of the head of the company.
The US Justice Department is suing VW for breaching environmental laws.
In emerged that more than 11 million vehicles worldwide have been fitted with the devices.
Volkswagen has set aside â‚¬6.7bn (Â£5.2bn) to cover the costs of the scandal, although earlier this month the company warned this might not be enough.


Police have arrested a further 12 men in connection with the violence which marred last month's Scottish Cup Final.

The arrests were made following operations at addresses in Edinburgh, Fife and Glasgow.
Police have now made a total of 28 arrests following the disorder at the Hibs/Rangers clash at Hampden on Saturday 21 May.
Officers said they expected more to take place in the next few weeks.
The detective leading the operation, Det Supt Kenny Graham, said the new arrests were just the "first phase" of the large-scale investigation.
He said 10 men, aged between 17 and 50, were arrested over offences including assault, vandalism, disorder and anti-social behaviour.
The 17-year-old was charged with an alleged assault on Rangers goalkeeper Wes Foderingham, who was still on the pitch when Hibernian fans invaded at the full-time whistle.
Two other 18-year-olds were the subject of a report to the procurator fiscal in connection with alleged disorder and assault at the game.
Police brought horses on to the Hampden pitch to control the crowds, after Hibernian won their first Scottish Cup Final in 114 years.
There were clashes as thousands of Hibs fans invaded the pitch as well as a section of support from the Rangers end of the ground.
The pitch invasion delayed the presentation of the trophy and there was no lap of honour for Hibs players.
Rangers players were not able to pick up their cup final medals.
Det Supt Graham said: "This is a large-scale investigation into the multiple acts of violence, disorder and vandalism, involving large numbers of people which occurred in the aftermath of the Scottish Cup Final.
"I have a team of officers which has been working extensively to identify those individuals involved in violence and disorder, regardless of the colour of their scarf."
Police Scotland said they were reviewing hours of CCTV and television footage, photography and material from social media.
There were 16 arrests in the first week after the match.


Lily Agg, Katie Jones and Paige Sawyer have all left Bristol City ahead of the new Women's Super League One season.

Midfielder Agg joined in January from Brighton & Hove Albion, while 18-year-old centre-back Katie Jones made her debut in 2015.
Striker Sawyer, also 18, played her first game for the Vixens against QPR in the Women's FA Cup.
Midfielder Jodie Brett has returned to parent club Chelsea after a loan spell last season.


A couple have scooped a £1m lottery prize for the second time - just two years after their first seven-figure win.

David and Kathleen Long, from Scunthorpe, North Lincolnshire, won their first £1m in 2013.
Lottery organisers Camelot said the couple struck lucky again in the 27 March EuroMillions draw.
The firm said it was an "extraordinary situation" for someone to be fortunate enough to win twice.
"As you can imagine, we see winners who win once who are very, very shocked. It must be even more shocking to win twice," a spokesman said.
But former HGV driver Mr Long did not seem too surprised by the windfall.
"I always knew I'd win, even the first time," he said.
"I just had a feeling it was going to be me."
Two years ago Mr Long came close to disaster after his first winning ticket ended up in the rubbish bin after the couple mistakenly thought they had won just £2.70.
The pair have since married after being engaged for 12 years.
Mr Long said the first win had been "fantastic" and had changed their lives.
"Times had been really tough and I had been really ill for three years, unable to work leading up to it," said Mr Long.
"I lasted three days at work and then took early retirement.
"We've had an amazing 18 months, have been able to treat the family, buy a new car and even finally get hitched," he said.


One in five students in independent schools received extra time to complete GCSE and A-level exams last year.

The proportion was significantly higher than those who received the special measure in state schools where the figure is fewer than one in eight.
The difference has come to light following an analysis of official exam data by BBC Radio 4's Today programme.
Exams watchdog Ofqual said this may be because of the readiness of schools to find students entitled to more time.
HMC, a group representing independent schools, said the higher rate was down to "proper resourcing" which it said "can be be lacking in state maintained schools".
But the head teacher of a comprehensive school in Suffolk said the different rates raised "serious questions".
Students receive extra time, typically more than three hours to complete a two-and-a-half hour exam, because of special needs or disabilities like dyslexia.
The system has previously faced claims that better resourced schools may be more likely to receive the measure, which is available as part of rules to ensure a level playing field for exam candidates.
Last year in GCSE and A-level exams, extra time was awarded to more than 27,000 independent school students -  which represented nearly 20% of all candidates in the sector.
In state institutions, around 200,000 students received extra time, which represented less than 12% of all state sector students taking the exams.
The total number of students awarded extra time in England, Wales and Northern Ireland has increased every year since 2011.
Ofqual has previously introduced measures to try to reduce requests for so-called Access Arrangements after claims the system was being abused.
The Joint Council for Qualifications (JCQ) which represents the UK's biggest exam boards, said it was important the arrangements were approved only for those who needed them.
In a statement, it said: "There's a rigorous process to ensure this, including annual inspections, and we review this process every year.
"Fairness is ensured by the process being the same, irrespective of location or type of school or college."
Geoff Barton, head teacher of King Edward VI comprehensive school in Bury St Edmunds, blamed a "high stakes" accountability system including results and league tables for influencing schools' use of the measure.
He said: "Whether they are getting special consideration does seem to be something that isn't only done in the interests of the youngster, but also can have an effect for the school.
"So there's no surprise that schools will reflect on that as they are planning the exam season."
He added: "What the data does is to raise some serious questions for schools."
Peter Hamilton, HMC's academic policy spokesman and headmaster of Harberdashers' Aske's Boys' School in Borehamwood, said the independent sector was able to apply for help for pupils "because of ever-improving monitoring and awareness of special needs".
He said: "We are also fortunate to have proper resourcing and specialist departments, which can be lacking in state maintained schools.
"All heads want to see learning support staff given the time and money necessary to ensure all pupils are able to claim their rights."
The watchdog said the data did indicate some variation between types of examination centres.
It said the difference could be partly explained "by the ability and readiness of centres to identify students who are entitled to a reasonable adjustment".
Both state and private sectors involved in the data comparison include special schools, whose students are more likely to require access arrangements.
Ofqual said the private sector figures included independent special schools which may impact upon the percentages when making comparisons.
An independent special schools source said the numbers of students involved in such exams was relatively low. It's thought unlikely to have a significant impact on the comparison between sectors.
A charity that supports people with dyslexia has previously said schools needed better training to get pupils assessed, adding that students did not need formal or costly diagnoses to qualify for access arrangements.
The Today programme first used freedom of information laws in 2014 to ask JCQ for figures on access arrangements in various types of schools.
Following a ruling by the Information Commissioner, it emerged that the data would be supplied by exam boards to Ofqual.


More than 6,000 builders issued with industry certificates will have to re-sit exams after the BBC uncovered the rigging of health and safety tests.

Construction workers are required to hold a CSCS card to prove skills and a knowledge of health and safety.
But a joint BBC London/Newsnight investigation found organised cheating.
Carl Rhymer, of the Construction Industry Training Board (CITB), one test provider, said 6,000 card-holders would be required to re-sit the exam.
CSCS (Construction Skills Certification Scheme) cards are widely seen as the UK's flagship scheme for certifying builders and are required by nine of the UK's biggest construction companies as well as Crossrail and Heathrow.
But the investigation found numerous test centres were offering guaranteed passes for cash, enabling workers lacking English to obtain qualifications and entry to dangerous construction sites.
During the investigation the BBC exposed Wep HSE, in Ealing, after its award-winning director, Garet Estensen, read exam answers from a big screen, instructing candidates: "Follow me on screen, guys. I'm going to shout the correct answer."
Confronted with the evidence, Mr Estensen made no comment.
The other two centres exposed during the investigation were Future Training 4 Jobs in Ilford and Training Xpress Limited in Colindale. Both have now been suspended from testing.
Mr Rhymer, director of delivery and customer engagement at the CITB, said it was aware of fraudulent incidents and was "tackling this head-on".
He said: "We are working hard with CSCS and the police to crack down on fraud and we are accelerating existing plans to install mandatory CCTV in all testing centres.
"We've also increased the number of spot checks on centres, to act as a deterrent."
Mr Rhymer said following a review it had found the "vast majority" of tests were legitimate but it would "require 6,000 individuals to be retested... to eliminate any doubt".
But Alistair Donaghey, health, safety and environmental manager of Willmott Dixon, a construction company with a Â£1bn turnover said: "I'll never trust the scheme again."
Those required to re-sit the test will be issued with vouchers to cover the cost at the CITB's expense, it said.


Wirral's motorway closes later for 55 hours as part of a project to repair a slip road and install a new bridge.

The work at junction two of the M53 at Moreton will begin at 22:00 BST.
One of the bridges which carry the junction slip roads over the motorway will be removed in preparation for a new bridge deck installation.
The motorway will be closed southbound between junctions one and three and at junction two northbound until 05:00 on Monday.
Highways England said work on the project, which started in February, was due to be completed by early June.
Due to "unforeseen technical issues", however, it is now likely to continue until August.
Drivers are advised to avoid using the Wallasey (Kingsway) tunnel north of junction one and to use the Birkenhead (Queensway) tunnel instead if they are crossing the Mersey.


Scientists in the US have mapped out how the brain organises language.

Their "semantic atlas" shows how, for example, one region of the brain activates in response to words about clothing and appearance.
The researchers found that these maps were quite similar across the small number of individuals in the study, even down to minor details.
The work, by a team at the University of California, Berkeley, is published in the journal Nature.
It had previously been proposed that information about words' meaning was represented in a group of brain regions known as the semantic system.
But the new work uncovers the fine detail of this network, which is spread right across the outer layer of the human brain.
The results could eventually help those who are unable to speak, such as victims of stroke or brain damage, or motor neuron diseases.
Volunteers - including lead author Alex Huth -  listened to more than two hours of stories from a US radio programme while remaining still inside a functional Magnetic Resonance Imaging (MRI) scanner.
The team collected data on changes in blood flow and oxygenation - indicators of activity - in different areas of the cerebral cortex.
The cerebral cortex is the brain's outer layer of tissue, playing a key role in higher functions such as language and consciousness.
The brain imaging data were matched against time-coded transcriptions of the stories. The researchers then used a computer algorithm that scored words according to how closely they are related in terms of meaning.
The results were converted into a thesaurus-like map where the words were arranged on the left and right hemispheres of the brain.
They show that the semantic system is distributed broadly in more than 100 distinct areas across both halves - hemispheres - of the cortex and in intricate patterns that were consistent across individuals in the study.
The maps show that many areas of the human brain represent language describing people and social relations rather than abstract concepts.
But the same word could be repeated several times on different parts of the brain map. For example, the word "top" was represented in a part of the brain that responds to words about clothing and appearance, and also in a region that deals with numbers and measurements.
"Our semantic models are good at predicting responses to language in several big swaths of cortex," said Dr Huth.
"But we also get the fine-grained information that tells us what kind of information is represented in each brain area. That's why these maps are so exciting and hold so much potential."
Scientists could track the brain activity of patients who have difficulty communicating and then match that data to language maps to determine what their patients are trying to express.
"Although the maps are broadly consistent across individuals, there are also substantial individual differences," said the study's senior author Jack Gallant.
"We will need to conduct further studies across a larger, more diverse sample of people before we will be able to map these individual differences in detail."


Nuneaton Town have signed goalkeeper Callum Burton on an undisclosed-length emergency loan from Shrewsbury Town.

The 18-year-old, who is yet to make a senior competitive appearance, signed a two-year professional deal with the Shropshire club in February.
England Under-18 international Burton was needed by Nuneaton after Christian Dibble, on loan from Barnsley, was recalled by his parent club on Monday.
Dibble had made five appearances for the club since arriving in November.
Nuneaton are currently 23rd in the Conference, four points above bottom club Telford, their Boxing Day opponents.
Meanwhile, the red card shown to Nuneaton midfielder James Armson during Saturday's 2-0 defeat by Halifax has been rescinded, meaning he will be available for Friday's game.


Torquay United midfielders Damon Lathrope and Luke Young could return to action before the end of January.

The pair has been expected to miss much of the rest of the season after Lathrope underwent groin surgery and Young injured knee ligaments.
"With a little bit of luck with both of them, we may well see them before the end of the month," Gulls boss Kevin Nicholson told BBC Sport.
"It's surprising for me and it changes a bit about how I plan going forward."
Nicholson continued: "(Torquay physio) Gareth Law's been doing great, they've been working very hard.
"They've got themselves in position now where they're slowly getting integrated into training with non-contact stuff and ball work."
But defender Giancarlo Gallifuoco has been ruled out for up to six weeks with a knee injury.
The 22-year-old Australian was hurt during the Gulls' 4-3 win over Forest Green Rovers on Boxing Day.
"It's sad for him, he's got the best attitude in football, he's a great lad, he just wants to learn and wants to get better," Nicholson added.
"This is just an experience for him to take in. It happens to all of us."


Warrington missed out on the chance to extend their Super League lead with a shock defeat at Huddersfield.

The hosts came into the game bottom of the table, but took a well-deserved half-time lead when Aaron Murphy went over in the corner.
Warrington offered little in attack, and Danny Brough extended the Giants' lead with a penalty and a drop-goal.
Leroy Cudjoe's late try sealed the win for Huddersfield, who remain 12th after fellow strugglers Leeds beat Hull FC.
Warrington remain top of the league after extending their winless run against Giants to five games, but Tony Smith's side are now level on points with both Catalans and Wigan.
Wolves were poor in possession and were perhaps fortunate not to concede more points, as both Joe Wardle and and Oliver Roberts were held up over the line for the home side.
The visitors were able to prevent Jermaine McGillvary scoring for an eighth successive match for Huddersfield, but persistent errors in attack saw them lose in consecutive games for the first time this season.
Huddersfield head coach Paul Anderson: "Just the win is pleasing. It was important in regard to where we're at.
"But we can't rest on our laurels, we need another 12 like that if we are to give ourselves a chance.
"We want to be in the top eight, not the middle eight."
Warrington head coach Tony Smith: "It's a concern. We're not happy and we're going to change our training routine. We're going to do things differently.
"I thought our defence was terrific but we couldn't match Danny Brough's kicking game.
"He kicked us to death twice last year and he was at it again."
Huddersfield: Brierley; McGillvary, Cudjoe, Connor, Murphy; Brough, Wood; Johnson, Hinchcliffe, Huby, Wardle, Ta'ai, Lawrence.
Replacements: Rapira, Leeming, Mason, Roberts.
Warrington: Russell; Penny, Hughes, Atkins, Evans; Gidley, Ratchford; Hill, Clark, Sims, Westwood, Currie, Westerman.
Replacements: King, Philbin, Jullien, Wilde.
Referee: Richard Silverwood.


Cameroon coach Volke Finke has been dismissed from the job.

The decision was taken by the Cameroon Football Federation (Fecafoot) executive committee on Friday, after Finke lost popularity with the public.
"People have rejected him," Fecafoot President Tombi A Roko Sidiki said.
"His style of play had become stereotyped, lacking inspiration for the players selected and without any strategy for victory," Sidiki added.
German Finke, 67, had been in charge since May 2013 but suffered poor campaigns at the 2014 World Cup and 2015 Africa Cup of Nations.
Fecafoot announced on its Twitter page that Alexandre Belinga has been appointed interim head coach to be assisted by Bonaventure Djonkep.
The pair will be in charge for the two-legged 2018 World Cup qualifier against Niger on 13 and 17 November, an arrangement which could be extended depending on results.
"We would appreciate Belinga's management of the games against Niger in both legs and if he convinces, he can remain there even for ten years", Sidiki said.
Once a dominant force in African football, Cameroon have struggled in the past five years and Finke was unable to turn around their fortunes.
At the World Cup in Brazil, Finke's side lost all three games with several disciplinary issues amongst his players - Alex Song was sent off and team-mates Benoit Assou-Ekotto and Benjamin Moukandjo clashed on the field.
Cameroon appeared to recover when they qualified unbeaten for the Nations Cup in Equatorial Guinea a year later but they were eliminated at the first hurdle at the tournament.


A former US Navy Seal who wrote a bestseller about his role in the raid that killed Osama Bin Laden is to pay nearly $7m (Â£5m) to the government for violating non-disclosure agreements.

Matt Bissonette failed to get clearance from the Pentagon before the book No Easy Day was published in 2012.
He has agreed to forfeit all profits and royalties, as well as film rights and speaking fees.
In exchange, the government will dismiss other liability claims.
The al-Qaeda leader was killed in a May 2011 Navy Seal raid on his compound in Abbottabad, Pakistan, and his body was buried at sea.
Navy Seals - special operations commandos - usually abide by a code of silence and do not publicly take credit for their actions.
In the settlement filed at a district court in state of Virginia, Mr Bissonette acknowledged he had failed to submit his book for review ahead of publication.
He also apologised, saying in a statement that he had acted on the incorrect advice of his lawyer.
"It was a serious error that I urge others not to repeat," CBS news quoted him as saying.
"Although I never intended to endanger my former colleagues, I now recognise that failing to seek pre-publication review could place them and their families at greater risk, for which I especially apologise."
The former commando, who wrote under the pseudonym Mark Owen, will have four years to pay the bulk of the money to the government, according to the Associated Press news agency.
He has 30 days to pay $100,000 made from presentations he gave using slides that were not approved by the Pentagon, it says.
His account of the Abbottabad raid has been questioned by another member of the elite Seal Team 6 unit that carried out the operation, who has a different version of how Bin Laden was shot dead.
Profile: Seal Team 6


The family of a 64-year-old man who has been missing for a week say they have been "overwhelmed" by support from the public.

Arnold Mouat was last seen at a property in Panbrae Road, Bo'ness at about 23:30 on 6 July.
Mr Mouat subsequently left the address at some point during the night and has not been seen since.
Police officers will be in Bo'ness on Friday to speak to people who may have been in the area on 7 July.
In a statement issued through Police Scotland, Mr Mouat's family said:  "We're overwhelmed by the support shown by the local and wider community and are extremely grateful to everyone who has offered to help find Arnold.
"This includes the volunteers who assisted the police with searches yesterday morning and afternoon."
Mr Mouat's family said it had been "a very difficult time for all of us".
The statement continued: "We ask anyone who has information that might assist police with their ongoing search effort to please make contact immediately.
"Likewise, Arnold, if you're reading this then please let us know that you're okay."
A public search of the Bo'ness area attended by 59 volunteers was carried out on Thursday.
Police said local and specialist resources had been deployed across Forth Valley, West Lothian and South Queensferry.
Mr Mouat is white, about 6ft 3in tall, with dark receding hair, a tanned complexion, and speaks with a Shetland accent.
He is believed to be wearing distinctive blue running trainers, but the rest of his clothing is unknown.
Insp Jim Young said:  "I'd like to pay tribute to Arnold's family who have shown incredible strength during what is undoubtedly a very difficult time.
"I would also like to thank the public for their assistance throughout this investigation, their support has been crucial.
"Unfortunately we are still looking for that key piece of information that will lead to us finding Arnold and give us the answers his family are desperately seeking."


An eight-year-old boy has been rescued after getting into difficulties off Downhill beach, near Castlerock in County Londonderry.

The boy was about 50m out to sea on Tuesday afternoon and trying to stay afloat on a bodyboard when he became distressed.
An RNLI lifeguard, Ray Cunningham, brought him safely to shore, where he was met by his mother.
Mr Cunningham said the boy had been "very lucky".
He said the child was on his bodyboard outside the red and yellow flags set up by lifeguards "to indicate the safest area to enjoy the water, when he showed signs of being in difficulty".
"It was a nice day but we would urge people who want to enjoy the sea to stay between the flags and be vigilant for rip currents," Mr Cunningham added.
"This young boy was very lucky, he was working so hard to try and get back to the shore but he was going nowhere and becoming exhausted.
"He was pretty shaken by the ordeal but thankfully had no injuries."


Leicestershire have appointed former Derbyshire, Sussex and Warwickshire batsman Wasim Khan as chief executive.

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The 43-year-old, who is the first British Asian to be appointed CEO of a county cricket club, is to take up his position at Grace Road in January 2015.
Khan scored 2,835 first-class runs during an 11-year professional career, including a career-best score of 181.
"I am looking forward to working with the staff and board because I know they are terrific people," said Khan.
"It is a tremendous honour and an exciting opportunity for me."
After retiring from first-class cricket in 2001, Khan embarked on a career in business and cricket administration.
Most recently he has been working as chief executive officer of the Cricket Foundation, which helps encourage children to play cricket through the Chance to Shine and StreetChance programmes.
Leicestershire have had a disastrous time on and off the pitch recently. They have seen numerous changes in their management structure, have failed to win a County Championship game in the past two seasons and have seen many of their top players leave.
Chairman Paul Haywood said: "Wasim impressed the interview panel with his vision, his passion for the game, and his track record both in cricket and cricket administration.
"Wasim has tremendous experience and knowledge of cricket from his days as a player and an administrator and has a track record in building successful teams. We know that he will do a tremendous job."


Calls for women to be denied their right to vote have trended on Twitter as polls suggested Donald Trump would win if only men could cast ballots in next month's White House election.

The Republican nominee's supporters were accused of tweeting #repealthe19th - a reference to the US constitutional amendment granting women's suffrage less than 100 years ago.
The hashtag went viral after polls suggested Mr Trump would win election if only men cast ballots.
Mr Trump has struggled to win over female voters, especially since a recent tape emerged of his sexually aggressive boasts.
The hashtag began trending after FiveThirtyEight, a political number-crunching blog, tweeted two polls which showed what the outcome of the presidential election would be if only women voted, and if only men voted.
He found that if the election only counted the female vote, Democratic candidate Hillary Clinton would win the presidency with 458 electoral votes and Mr Trump a meagre 80.
If only men voted in the presidential election, Mr Trump would win the election with 350 electoral votes and Mrs Clinton only 188.
A candidate must win 270 electoral votes to win the presidency.
FiveThirtyEight: Women are defeating Donald Trump
Some of the tweets calling for a woman's right to vote to be repealed seemed in earnest.
The backlash was quick and unforgiving, with many blaming it on Trump supporters, labelling them ignorant and predictable.
But a few Trump supporters pointed out most of the tweets seemed to express outrage at, rather than support for, the hashtag.
Others, however, seemed to be in despair at what they see as the sorry state of America.
How does the US election work?
A-Z guide to political jargon
Key issues - where candidates stand
Why this election will make history
Who is ahead in the polls?
48%
Hillary Clinton
44%
Donald Trump
Last updated November 8, 2016


Recently, there have been more stories about Yahoo shutting bits of its business than celebrating successes.

The firm's own internet services are now valued to be worth a fraction of its stake in the e-commerce giant Alibaba.
So, after the US tax authorities effectively blocked Yahoo's sales of shares in the Chinese business, chief executive Marissa Mayer opted for plan B: sell off Yahoo's core business.
Since February, dozens of US-based companies have been linked to a potential bid.
But the UK-based owner of the Daily Mail newspaper has now confirmed it is in discussions with unnamed parties to make an offer - an announcement that caught many by surprise.
In much of the world, Yahoo may be considered a marginal internet brand.
But in the US, it is still a force to be reckoned with.
In February, it was the States' third most visited online platform, attracting more than 204 million people, according to research firm Comscore.
To put that in context, Facebook had only 1% more users and Google's apps and websites only 17% more.
Yahoo's news and sports are read by about one in four people at least once a week in the country, according to a University of Oxford study.
And there are reports that its personal finance coverage is proving popular with millennials - those born in the 1980s and later - thanks to it mixing articles about how to deal with debt with more traditional earnings coverage.
Other properties, including its blogging platform Tumblr, photo-sharing service Flickr, web-based email accounts and Q&A site Yahoo Answers continue to have international appeal.
All of which means the firm can state that "more than one billion people" regularly use its products.
Investors are getting restless because Yahoo's share of users doesn't match its share of online advertising sales.
Last year, Yahoo accounted for only 1.5% of marketers' mobile online spend, according to a study by eMarketer.
By contrast, Google scooped up 35% and Facebook 19%.
Furthermore, Yahoo's position appears to be getting worse.
The firm has predicted that its overall revenues will drop by about 15% this year, according to documents seen by the news site Recode.
A large part of the problem is that while Yahoo can serve up huge numbers of ads, they are less targeted than those of its rivals.
"User data is key. Google and Facebook have a huge number of logged-in users, so they can track who it is using their services and use the information to let advertisers direct their ads," explained Joseph Evans from Enders Analysis.
"Yahoo might have a lot of users, but most of them are not logged into its services, so are effectively anonymous eyeballs.
"They are not totally anonymous - there is some behavioural data that Yahoo makes use of - but generally Google and Facebook are better at knowing who you are."
A chance to grow its US audience.
MailOnline and DailyMail.com were the only overseas publications to feature in the country's top 10 most visited news websites and apps last year, attracting more than 51 million readers.
But Yahoo - and its partner ABC News - still managed to attract more than double that figure.
"The US has been the main driver of digital growth for Daily Mail & General Trust, but whilst traffic has grown well they haven't quite monetised this traffic as successfully as they would have liked," said Ian Whittaker, a media analyst at the investment bank Liberum.
"The combined inventory of DMGT and Yahoo would make a compelling offer to media buyers as they could offer them a significant amount of verified impressions in a 'brand-safe' environment."
Another industry watcher added that the two firms' online activities appear to be a good match.
"Mail Online is fun and a bit salacious," commented Mathew Horsman from the Mediatique consultancy.
"It trends reasonably young and has a reputation for being a quick and dirty way of getting celebrity news, but its personal finance and property coverage are also among its strong suits.
"So, there are some interesting overlaps."
Far from it.
Many think a deal with Verizon would make more sense.
The mobile network has sought to diversify its interests, and bought AOL last year - which gave it ownership of the Huffington Post, Techcrunch, Engadget and other news sites.
Shortly afterwards, Verizon announced it would start combining personal knows about its mobile network subscribers - which is tied to their handsets - with the tracking data already gathered by AOL's sites. By doing so it said it could deliver more "personalised" ads.
"A Verizon-AOL-Yahoo tie-up would start to reach the sort of scale where they could become a 'third force' in advertising," said Mr Evans.
"Verizon already has one of the most sophisticated ad technology platforms and has built up a large number of user identities, so combining that with Yahoo's large number of users would allow it to offer a similar level of service to advertisers as Google and Facebook."
Other bidders might be attracted by Yahoo's intellectual property,
The New York Post recently reported that the firm owned about 6,000 patents, which it said could be worth $4bn (Â£2.8bn).
Recode added that Ms Mayer has been talking up the value of Index - a voice-controlled search tool developed by Yahoo that has yet to be launched.
Google, Microsoft, Apple and Amazon already have virtual assistants of their own, but might be interested in acquiring Index if it genuinely offers innovative tricks of its own.


A hit-and-run driver is being hunted by police after a crash caused a pregnant woman to suffer a miscarriage.

A two-year-old boy also suffered serious head injuries in the crash in Birmingham.
The driver of a black Vauxhall Astra ran from the scene in Eastfield Road, Bordesley Green, after crashing with a red Ford Fiesta.
The driver of the Fiesta was eight weeks pregnant. Another child, a four-year-old boy, suffered minor injuries.
More on this and other Birmingham stories
PC John Slater, from West Midland Police's traffic collision investigation unit, said: "Tragically the woman was in the early stages of pregnancy at the time and as a result of the collision suffered a miscarriage.
"I would like to hear form anyone who may have seen the crash to call police on 101.
"I would also ask that the driver does the right thing and makes contact with the police."
Police said the crash happened on Saturday 2 April at 15.25 BST.


Labour has been "too timid" about taxation, leadership hopeful Owen Smith has said, and pledged that he would raise the top income tax rate to 50p.

Mr Smith, who joins Angela Eagle in challenging Jeremy Corbyn, said the tax system needed to be more "progressive".
On Brexit, he said people should not accept "we're on a definite path out."
Mr Smith and other Labour MPs say there should be a "unity" candidate to take on Mr Corbyn, who has vowed to fight the challengers in the contest.
But Ms Eagle, who was the first to launch a challenge against the Labour leader, said it was "too early" to talk about that idea.
Meanwhile, Mr Corbyn told the BBC's Sunday Politics he thinks the rules which exclude recently signed-up Labour members from voting in the contest are "not very fair" - and that he wants the party's National Executive Committee to change them.
He also believes the £25 fee for registered supporters to vote in the contest is too high.
In a speech in his constituency later, Mr Smith, MP for Pontypridd, will set out his leadership pledges, including plans to invest £200bn into building projects, which he will say is what is needed to "rebuild Britain".
Speaking on Sunday's Andrew Marr Show, Mr Smith, when asked if he would raise taxes on the richest in society, said: "I think we need to completely overhaul our tax system, so yes."
The former shadow work and pensions secretary said he would reintroduce a 50p top rate of tax "tomorrow" and also said it was "completely anomalous" for capital gains tax to be 20% when the higher rate of income tax was 45%.
Mr Smith, a former member of the Campaign for Nuclear Disarmament (CND), went on to say he would vote to renew Trident in Monday's Commons vote, saying he believed the world had become "more volatile, more insecure over the last few years".
"I want a world without nuclear weapons altogether, but I don't think we hasten that by divesting," he said.
Asked whether he would be prepared to press the nuclear "button" as prime minister, Mr Smith said: "You've got to be prepared to say 'yes', that's absolutely right."
BBC political correspondent Alan Soady
Both Angela Eagle and Owen Smith are putting themselves forward as anti-Jeremy Corbyn candidates and as candidates of unity who think they're not as far left as Mr Corbyn - but are not Blairites either.
By positioning themselves in that way, they think they could potentially be acceptable to both wings of the party.
The problem is that having two rival unity candidates splits the vote and one would have thought that it makes it more likely that Jeremy Corbyn will win this leadership contest.
Owen Smith has already said he believes there should only be one of them going forward into the formal contest - it's just a case of deciding who.
On the EU, Mr Smith hinted at the possibility of a second referendum on EU membership, but said it would depend on what kind of deal the UK negotiated on the terms of Brexit.
He also said it would be "very tempting" for Labour to campaign on a promise not to trigger the formal Article 50 process to bring the UK out of the EU, "because we are a party that believes in being at the heart of Europe".
"I don't think we should accept we're on a definite path out. I think we need to make sure people are satisfied," he added.
"We trusted people, rightly, to take the decision. We can trust them again in 18 months time to check it's absolutely what they wanted."
Mr Smith will further warn that the party risks "falling apart" if it does not act "like a proper team", and he is also expected to attack Mr Corbyn for being anti-austerity without putting forward an alternative.
In her pitch for the Labour leadership, Ms Eagle said she was a "working-class woman" from the North of England, "and that's what we need at the moment".
"My whole political mission is to get working class kids the right opportunities to shine," she said, and highlighted her experience in government and opposition.
The ex-shadow business secretary also urged Labour members and supporters to "keep it comradely" in the leadership election, following abuse and threats directed at MPs.
Labour Party members, affiliated trade union supporters and so-called registered supporters are able to vote although there are some key differences from the 2015 contest, which Jeremy Corbyn won:
Mr Smith has said he believes only one challenger to Mr Corbyn should appear on the final leadership ballot, decided by "whoever is the person who commands the largest degree of support in the PLP".
But Ms Eagle - who was debating the leadership contest with Mr Smith on the Marr show - said she thought she was most likely to beat Mr Corbyn, adding: "We're not going to do a deal here on your sofa."
It comes ahead of a parliamentary Labour Party hustings on Monday, when the leadership contenders will set out their stall to fellow MPs.
Yvette Cooper - who stood for the Labour leadership last time round - endorsed the idea of a single candidate to avoid "artificial rows".
She said an early general election was a possibility, and added: "So we need a unity candidate who can pull a strong team together, something that Jeremy Corbyn's not been able to do."
Despite facing a revolt from his MPs, Mr Corbyn retains the strong support of many party members and has said he will fight the challenges in a contest which is expected to be decided in September.


Wasps came agonisingly close to a historic win away to Toulon in the European Champions Cup, only for the hosts' Drew Mitchell to cross for a try in the final play of the match.

Guy Thompson had surged over on 70 minutes to give Wasps a 11-8 lead, but their line was breached in injury time.
Victory preserved defending champions Toulon's record of having never lost at home in Europe's premier competition.
It also moved the French side ahead of Wasps in Pool 5 with one game to go.
However Toulon, who are fourth in their domestic Top 14, looked well short of the dominant form that has delivered three successive European crowns.
Wasps - who were without influential forwards Joe Launchbury, James Haskell and Nathan Hughes - remained in a scrappy contest through Jimmy Gopperth's boot despite the hosts' dominance in the scrum and very nearly punished Toulon's lack of focus.
But, stirred into life by Thompson's score, Toulon belatedly injected some urgency into their play and Mitchell picked a superb line off centre Ma'a Nonu's shoulder to pierce a tiring Wasps defence at the death.
Wasps may yet have the last laugh on Toulon.
Only pool five's winners are assured a quarter-final place and Wasps, a point behind Toulon, will complete their campaign with a home match against bottom side Leinster while the defending champions play Bath at the Recreation Ground.
Wasps scrum-half Joe Simpson failed to make Eddie Jones' first squad with the new England coach opting for Leicester's Ben Youngs and Harlequins' Danny Care as his two number nines.
But his accurate service from the breakdown and potentially try-saving tackles on Bryan Habana and Duane Vermeulen in a superb all-round display made a strong case for an international call-up.
Elsewhere, centre Elliot Daly - who could well start the Six Nations opener against Scotland on 6 February - helped set up Thompson's score with a terrific break past Nonu.
Toulon's Steffon Armitage - whose decision to play his club rugby in France has put him out of reach Jones' reach - gave another impressive performance in England's problematic openside slot, rampaging in the loose and a persistent presence at the breakdown.
Toulon's fly-half Quade Cooper - who only made his debut for the French giants in November - was described as more "pate" than "foie gras" by the club's outspoken owner Mourad Boudjellal earlier in the week after an underwhelming start on the Cote d'Azur.
He showed plenty of commitment to score the game's first try - chasing wing Josua Tuisova's break to take a simple scoring pass - but the stardust that he has been hired to dispense was still in short supply.
A snatched drop-goal attempt followed by a duff grubber kick early in the second half had the Stade Felix Mayol grumbling, and the Wallaby was replaced by Frederic Michalak soon after.
Toulon: Mitchell, Tuiosva, Bastareaud, Nonu, Habana, Cooper, Escande, Fresia, Guirado, Chilachava, Suta, Mikautadze, J. Smith, S. Armitage, Vermeulen.
Replacements: Mermoz for Bastareaud (71), Michalak for Cooper (50), Tillous-Borde for Escande (50), Chiocci for Fresia (49), Etrillard for Guirado (49), Saulo for Chilachava (49), Lassale for Mikautadze (50), Gorgodze for J. Smith (71).
Wasps: Piutau, Tagicakibau, Daly, Jacobs, Halai, Gopperth, Simpson, Mullan, Shervington, Cittadini, Davies, Gaskell, Jones, G. Smith, Thompson.
Replacements: Jackson for Daly (74), Miller for Jacobs (37), McIntyre for Mullan (63), Johnson for Shervington (56), Swainston for Cittadini (69), Myall for Gaskell (63), Young for Thompson (71).
Not Used: Robson.
Sin Bin: G. Smith (21).
Att: 13,344
Ref: Nigel Owens (Wales).


Former Wales flanker Martyn Williams believes it would be a mistake to split an expanded Pro12 into two conferences.

South African sides Cheetahs and Southern Kings are set to join the league for the 2017-18 season.
Derbies are likely to be protected even with a split, but Williams says the league should not complicate matters.
"I think you should just go with a league. I know there's extra games to be played, but just play each other home and away," Williams said.
"It'll be so confusing if you've got two conferences, two of seven and working out who plays who.
"We've got to keep all our Welsh derbies, because they're the games that bring the crowds in."
Former Cardiff Blues open-side Williams, who won 100 Wales caps and played four British and Irish Lions Tests, admits that the Pro12 does have to change to survive.
"Ultimately it's all about money... you're up against two absolute juggernauts of league in the Aviva and Top 14, England and France respectively," the 41-year-old told The Friday Night Social.
"The Pro12 needs to look at other revenue streams because it's not quite working as it is.
"The South Africans... will be stronger than the Italian teams and in fairness the people in charge of the Pro12, it's not a knee-jerk reaction it's something they've gone through and obviously the numbers work.
"If someone is a casual supporter then it will bring a little bit more spice into the league.
"If I was a player I'd definitely be excited about that prospect, something different and another test."


A driver filmed screaming obscenities at BBC presenter Jeremy Vine as he cycled on a narrow road has been found guilty of road rage offences.

Shanique Syrena Pearson, 22, made a gun sign and threatened Mr Vine during the row in Kensington, west London.
She was convicted of using threatening, abusive or insulting words or behaviour.
Pearson was also found guilty of driving without reasonable consideration for other road users.


Legendary rock group Led Zeppelin are to unveil previously unheard tracks recorded with Indian musicians during a visit more than four decades ago.

The two tracks - reworked versions of their songs Friends and Four Sticks - are among the songs contained in the band's reissues of three studio albums.
The English rock group were known for their pounding, blues-influenced songs and explosive stadium shows.
They broke up in 1980 following the death of drummer John Bonham.
Led Zeppelin's best-known songs include Stairway to Heaven, Whole Lotta Love, Rock and Roll, Kashmir and Communication Breakdown.
The band's website said that singer Robert Plant and guitarist Jimmy Page "took a fabled trip to India to perform with the Bombay Orchestra and now, for the first time, recordings from these sessions will be officially released with dynamic takes on Friends and Four Hands (Four Sticks from Led Zeppelin IV album)".
Band members visited India a number of time during 1971-72 during their tours in Asia and "during one of those trips Plant and Page participated in a session with a group of veteran Bollywood session musicians that resulted in reworked versions of Friends and Four Sticks," according to Rezaul H Laskar in the Hindustan Times newspaper.
"Led Zeppelin had not officially released any tracks from the Mumbai session till now though several bootlegs have emerged of the recording. In one bootleg, Page can be heard explaining bars and scales to [late Indian flautist] Vijay Raghav Rao, who gamely tries to convey his instructions to the Indian musicians who had clearly never collaborated with rock musicians".
The songs will be contained in the reissue of Coda, one of the band's final three studio albums that are being released in July. The other two albums are Presence and In Through The Out Door.
All the three albums have been remastered by 71-year-old Page.


The campaigner behind a petition calling for Donald Trump to be banned from the UK has accused him of attempting to blackmail Scotland.

Mr Trump has threatened to withhold £700m of investment if he is prevented from travelling to the UK.
A petition started by Suzanne Kelly calling for the US presidential hopeful to be refused entry has been signed by more than 570,000 people.
Ms Kelly said Mr Trump had "thrown a temper tantrum" over the issue.
She started the petition, which is to be debated by MPs in the House of Commons later this month, in the wake of Mr Trump calling for a temporary ban on Muslims travelling to the US.
In a statement on Wednesday, the Trump Organisation said any move to restrict the US presidential hopeful's travel would immediately bring an end to all future investments it is contemplating in the UK.
It said this would include £200m plans to develop its Trump Turnberry golf course and a further £500m investment earmarked for its Trump International Golf Links at Menie in Aberdeenshire.
But Ms Kelly, from Aberdeen, questioned the value of Mr Trump's investments in Scotland and the number of "permanent, desirable jobs" they had created.
She said: "Donald Trump is a man that knows the cost of everything - well, a hugely inflated cost of everything - and the value of nothing.
"He's threatening Scotland once again, as he did over the offshore wind farms, that if he is barred from entering the UK, he'll pull out of his Scottish golf courses.
"The irony of a man who wants to ban Muslims from entering the US throwing a temper tantrum over being similarly banned himself is apparent to everyone except the tycoon himself."
Mr Trump has previously threatened to pull investment from his Aberdeenshire golf resort if a planned wind farm off the coast gets the go-ahead, with the US billionaire taking legal action in a bid to halt it.
Ms Kelly said Mr Trump "had promised millions flowing into our economy every year" from the Menie resort.
But she claimed the reality was "a man who's stopped our experimental offshore wind farm programme thereby costing thousands of jobs and who has cost untold sums in fighting his court appeals, which finally failed".
She added: "If our electors value money more than the rights of Muslims - and everyone else he has denigrated - then we may need new electors.
"Some might consider this to be blackmail on his part - and as such there's more than a little deja vu about it."
Although MPs are to debate Ms Kelly's petition on 18 January, there will be no vote.
It will remain a decision for Home Secretary Theresa May whether or not Mr Trump should be prevented from travelling to the UK.
A rival petition urging the UK government not to ban Mr Trump has received 41,000 signatures and will also be debated on 18 January.
Prime Minister David Cameron has previously condemned Mr Trump's remarks about Muslims as "divisive, stupid and wrong", but has also made clear he did not support banning him.
But Scottish First Minister Nicola Sturgeon last month joined the calls for Mr Trump to be considered for exclusion from the UK.
In its statement on Wednesday, the Trump Organisation said the UK would "create a dangerous precedent and send a terrible message to the world that the United Kingdom opposes free speech and has no interest in attracting inward investment" if Mr Trump was barred from the country.
And it said any action to restrict his travel "would force the Trump Organisation to immediately end these and all future investments we are currently contemplating in the United Kingdom."


Quarterly profits at BT have dived 37% after the firm reported an accounting scandal in its Italian division that cost it more than £500m.

In the three months to 31 December profit before tax fell to £526m, although revenues climbed to £6.1bn.
On Tuesday, BT was forced to write down the value of its Italian unit after years of overstating profits.
It has now confirmed that Corrado Sciolla, head of continental Europe, will step down over the affair.
"The good progress we're making across most of the business has unfortunately been overshadowed by the results of our investigation into our Italian operations and our outlook," said Gavin Patterson, BT's chief executive.
In the final three months of 2016, BT said it had seen record growth at EE, its market leading mobile unit, signing up 276,000 new customers for monthly contracts.
It also added 83,000 broadband customers while 260,000 switched to faster fibre connections.
But it faces a slowdown in work for the public sector and reiterated its warning of flat group sales and lower profits for 2016-17.
Allegations of "inappropriate behaviour" at BT's Italian operation first emerged last summer before the company began conducting an investigation in October.
It found improper accounting practices and "a complex set of improper sales, purchase, factoring and leasing transactions".
Total adjustments relating to the investigation of its Italian business amount to £513m, BT said.
Mr Sciolla's departure follows that of a number of BT Italy's senior management team. The firm said it had also appointed a new chief executive of BT Italy who will take charge on 1 February.
BT shares have fallen 22% since news of the scandal broke on Tuesday.


Metropolitan Police chief Sir Bernard Hogan-Howe has "intensified" uncertainty over how sex abuse claims are handled, the police watchdog says.

Sir Bernard recently said an official policy to automatically believe victims had caused confusion among detectives investigating historical allegations.
He said there was a danger this meant complainants would always be believed.
But in a letter, the chief inspector of constabulary Sir Tom Winsor called Sir Bernard's comments misleading.
He said the policy was used for the purpose of recording a crime, rather than how claims should be investigated.
In 2014, Her Majesty's Inspector of Constabulary (HMIC) issued guidance which said "the presumption that a victim should always be believed should be institutionalised".
Speaking at a BBC event, Sir Bernard said it was time to "reformulate" the policy, so police showed empathy towards alleged victims but kept an open mind as they tested claims.
He went on to tell BBC Radio 4's Today programme that police had become "hung up" on the word "belief" and it had "confused officers".
He added there was a "grave danger" that "we will always believe any complaint that is made and that's not wise for any good investigator, nor as it would be for any journalist".
However, in a letter sent to the Met chief on 11 February, Sir Tom said the guidance was "conspicuously explicit" that the presumption of believing complainants was for the purpose of recording a crime once it had been reported to police.
It did not suggest complainants should be believed throughout the investigative process, he added.
He said: "In saying what you said on the Today programme, without qualification or context, and accepting the misapprehension on the part of the interviewer that the institutionalisation of belief should go much further than the simple administrative act of recording a crime, I regret you may have increased the risk that officers and others may not understand the position.
"Rather than dispel uncertainty, I fear you may have intensified it."
The Met's Deputy Assistant Commissioner, Mark Simmons, said it was "far from the truth" to suggest Sir Bernard was "confused" or had a "misapprehension on that issue".
He added: "I think the issue more significantly is in these really difficult areas where you go into the heart of some of the issues of vulnerability for some of the people who suffer these offences.
"They're complex matters to investigate and we need to make sure we get to the truth, but no, I'm pretty clear and I think all our people are, the commissioner is not confused about the approach we should be taking."
A review into the Met's policing procedures, which will be led by an ex-judge, is due to scrutinise the force's handling of investigations including Operation Midland - which is looking at claims that boys were abused by powerful men from politics, the military and law enforcement agencies in the 1970s and 80s.
The review follows criticism of the handling of cases involving former military chief Lord Bramall and the late Lord Brittan, a former home secretary.
Lord Bramall, who was told last month no action would be taken against him, later called for a review into the way cases were investigated.
Sir Bernard has apologised to the widow of Lord Brittan, who died without knowing a rape claim against him, which he denied, had been dropped.


Mae cwmni Tindle Newspapers wedi cadarnhau ei bod am gael gwared ar Y Cymro - yr unig bapur newydd cenedlaethol Cymraeg - ac felly mae'r papur yn chwilio am berchennog newydd.

Os na fydd modd dod o hyd i berchennog bydd y papur yn dod i ben ddiwedd Mehefin eleni.
Y bwriad, medd cwmni Tindle, yw trosglwyddo Y Cymro am ffi nominal er mwyn sicrhau dyfodol y papur a'r wefan.
Pwysleisiwyd na fydd swyddi yn cael eu colli wrth i'r trosglwyddo ddigwydd.
Cafodd Y Cymro, a sefydlwyd yn Wrecsam, ei gyhoeddi gyntaf yn 1932 gan olynu papurau newydd eraill o'r un enw - papurau oedd yn bodoli yn y 19eg ganrif a'r 20fed ganrif.
Cafodd Y Cymro ei brynu gan Ray Tindle, perchennog cwmni Tindle Newspapers Cyf, oddi wrth NWN Media Ltd yn 2004.
Mae Tindle wedi bod yn cefnogi Y Cymro yn ariannol ers 13 o flynyddoedd.
Dywedodd llefarydd ar ran cwmni Tindle Newspapers ei bod yn cynnig Y Cymro am ffi nominal er mwyn "ceisio sicrhau dyfodol y papur eiconig a'r wefan".
"Y Cymro yw'r unig bapur newydd cenedlaethol yn yr iaith Gymraeg.
"Mae'r papur wedi cael ei gefnogi gan y cwmni am lawer o flynyddoedd ond mae'n gyfnod gynyddol heriol i'r diwydiant cyhoeddi yng Nghymru,
"Anogir Llywodraeth Cymru i ystyried ei lefel o gyllido i'r cyfryngau Cymraeg i sicrhau plwraliaeth a mynediad darllenwyr Cymraeg at newyddion safon-uchel, gwreiddiol, perthnasol i'w bywydau a'r ardaloedd ble maen nhw'n byw."
Ychwanegodd y llefarydd: "Gyda chymorth panel o arbenigwyr, sy'n rhannu profiad helaeth a medrusrwydd yn yr iaith Gymraeg a chyhoeddi, mae Tindle yn chwilio am berchennog newydd i symud Y Cymro yn ei flaen."
Dywedodd Elin Jones, Aelod Cynulliad Ceredigion: "Dyma gyfle i berchennog a golygydd newydd i ddatblygu'r Cymro i'r cyfnod nesaf.
"Gobeithio y bydd rhywun yn cymryd y cyfle ac yn sicrhau parhad y papur pwysig yma a diogelu ei le o fewn newyddiaduraeth Gymraeg."
Gofynnir i bartïon sydd â diddordeb i gysylltu â chwmni Tindle yn Aberystwyth erbyn 7 Ebrill.


A single case of bird flu has been confirmed at the popular tourist attraction, Martin Mere.

The H5N8 strain was detected in a greylag goose at the nature reserve near Ormskirk, in Lancashire on Friday.
Peter Morris, who works for the site, said it is "not a strain... that has ever transmitted to humans" and the centre remains open to visitors.
He said it had spread from Europe, adding: "This isn't a case of anyone closing or culling anything."
"We get up to 60,000 wildfowl - wild ducks, swans, geese, waders - a day on peak days in winter, of which one has died of avian influenza."
Vehicle restrictions and disinfectant mats have been placed at the site's entrances and exits as precautionary measures. About 200,000 people visit Martin Mere every year.
"We are very, very mindful that a lot of people locally keep, or farm, birds or go to other nature reserves," said Mr Morris.
"So, we're making sure we stop anyone inadvertently transporting the disease in or out on their footwear, hands or equipment.
"We've taken all practical steps to separate wild birds from our collection of wildfowl.
"The government is relying on wardens at nature reserves including Martin Mere to be out at first light every day looking hard for unusual signs."
The H5N8 strain has been found in about 40 wild birds in England, Scotland and Wales after circulating in Europe for several months, according to the Department for Environment, Food and Rural Affairs.
In January, about 63,000 birds were culled at a Lancashire pheasant farm to prevent the spread of bird flu, which had already been found at two premises nearby in Wyre.


A 31-year-old woman who died in a collision on the A55 in Conwy county had also lost her husband in a road accident, her close friend has said.

Indi Weligamag died after her Citroen C1 crashed on the junction 24 slip road near Pensarn, Abergele, at 07:30 GMT on Christmas Eve.
She was taken to hospital but later died.
Esther Turner said: "Unfortunately Indi's husband died in a car accident in 2010."
Mrs Weligamag and her husband had moved to north Wales seven years ago and she worked as a waitress.
Ms Turner, a close friend, said she had continued to make friends in the area after her husband's death.
"She was a very likable person and was always kind and helpful to those she was with," she said.
"She was very dear to us all. Her sudden passing has left us broken hearted in that we will miss such a special person."


A boy has died after sustaining serious electrical burns at a rail depot.

The 11-year-old was found at the Daventry International Rail Freight Depot at 17:20 BST on Tuesday.
Paramedics, including an air ambulance, attended the scene but the boy was pronounced dead.
Det Insp Gareth Davies, from British Transport Police, said officers are working to understand "what happened and how this young boy came to receive these awful injuries".
The death is currently being treated as "unexplained".
Mr Davies said specially trained officers are supporting the boy's family as they "try to come to terms with this awful news".


A proposal to create Wales' first privately-owned railway station has been welcomed by UK Transport Secretary Chris Grayling.

He told MPs he was very happy to see plans for St Mellons Parkway in east Cardiff go ahead.
Cardiff South and Penarth MP Stephen Doughty said south Wales needed new stations to make the most out of rail electrification.
The new station has been provisionally named Cardiff Parkway.
Mr Doughty said the proposals to build the station in east Cardiff were "backed by the private sector, backed cross party, backed by the Welsh Government, backed by Cardiff council".
The Labour MP asked when there would be a decision from the new stations fund.
Mr Grayling said it did not need quite the same system of approval as stations seeking public funding.
The Conservative MP said: "I'm very happy to see that project go ahead."
He said the real issue was making sure it worked with timetables.
"Private sector project - a private sector funded project - I can see no reason why any of us would do anything else except want to support it if it's practical to do it," he said.
BBC Wales economics correspondent Sarah Dickins understands the developers are working closely with Welsh Government to ensure that there is a frequent service into Cardiff and Newport city centres.
The only other privately-owned station is at Southend Airport.
The new station, which would be part of the Metro network, would be built south of St Mellons Business Park.
The business park would focus on science and technology and would have a 1,600-space car park and a bus station.


Celtic ended their Europa League campaign without a victory but at least salvaged some pride with a draw.

They looked to be heading for a fourth straight European defeat when Lazar Markovic slid in the only goal of the first half.
But Diego's red card for a petulant kick at Stefan Johansen with a quarter of the game to go gave Celtic the lift they needed.
And substitute Kris Commons headed in to earn his side point.
The result was enough to ensure progress to the last 32 for Fenerbahce, while Celtic finish bottom on three points.
It marks the first time Celtic have gone through a group stage of a European competition without recording a single victory.
Fenerbahce manager Vitor Pereira had noted before the match that Celtic had been unlucky in Group A.
But fortune was on their side as Diego's dismissal allowed them back into a game in which they had not been able to muster a shot on target.
The hapless Nadir Ciftci, starting his first match since the middle of October, typified that as he laboured over Celtic's best chance, allowing Abdoulaye Ba to recover when a fit and in-form striker would have allowed him no such chance.
Commons showed far more clinical instinct as he made a late run into the box to head Mikael Lustig's cross into the top corner and send the visiting fans into delirium.
Yet as so often has been the case during this campaign, Celtic's principal problem was their failure to keep the opposition at bay.
Individual errors have contributed to dropped points in every match, though the guilty party on this occasion had already kept his side level with stunning saves from Mehmet Topal and Josef de Souza.
So it was all the more remarkable to see Craig Gordon misjudge Gokhan Gonul's through ball, missing it entirely, allowing Markovic the opportunity to roll the ball in from a tight angle despite the despairing efforts of three defenders on the line.
To Celtic's credit, they refused to buckle after that setback and though unable to create a great deal, they did not allow the Turks to inflict greater damage on their goal.
Ronny Deila had spoken of the need not to simply go through the motions in this match, but rather to learn from it.
Deila will certainly have learned that he remains short of striking options in the absence of Leigh Griffiths, with nothing on the bench to allow him to replace the struggling Ciftci.
Kieran Tierney again showed remarkable maturity at left-back and is the one shining light for Deila and Celtic in this campaign.
More generally, Celtic still display a propensity to give the ball away in dangerous situations - a trait that will have to be cut out if they are to make headway in next season's Champions League.
Match ends, Fenerbahçe 1, Celtic 1.
Second Half ends, Fenerbahçe 1, Celtic 1.
Mikael Lustig (Celtic) is shown the yellow card.
Offside, Celtic. Kris Commons tries a through ball, but Nadir Ciftci is caught offside.
Attempt blocked. Kris Commons (Celtic) right footed shot from the right side of the box is blocked. Assisted by Tomas Rogic.
Hand ball by Mikael Lustig (Celtic).
Kieran Tierney (Celtic) is shown the yellow card for a bad foul.
Alper Potuk (Fenerbahçe) wins a free kick on the right wing.
Foul by Kieran Tierney (Celtic).
Foul by Caner Erkin (Fenerbahçe).
Dedryck Boyata (Celtic) wins a free kick in the defensive half.
Alper Potuk (Fenerbahçe) wins a free kick in the defensive half.
Foul by Kieran Tierney (Celtic).
Substitution, Fenerbahçe. Caner Erkin replaces Fernandao.
Bruno Alves (Fenerbahçe) wins a free kick in the defensive half.
Foul by Nadir Ciftci (Celtic).
Abdoulaye Ba (Fenerbahçe) wins a free kick in the defensive half.
Foul by Nadir Ciftci (Celtic).
Dedryck Boyata (Celtic) is shown the yellow card.
Substitution, Fenerbahçe. Ozan Tufan replaces Lazar Markovic.
Fernandao (Fenerbahçe) wins a free kick on the left wing.
Foul by Mikael Lustig (Celtic).
Delay over. They are ready to continue.
Delay in match Gökhan Gönül (Fenerbahçe) because of an injury.
Attempt missed. Callum McGregor (Celtic) left footed shot from outside the box is high and wide to the right. Assisted by James Forrest.
Attempt missed. James Forrest (Celtic) right footed shot from outside the box is high and wide to the left. Assisted by Nir Bitton.
Attempt saved. Lazar Markovic (Fenerbahçe) right footed shot from outside the box is saved in the bottom left corner.
Alper Potuk (Fenerbahçe) wins a free kick on the left wing.
Foul by Mikael Lustig (Celtic).
Goal!  Fenerbahçe 1, Celtic 1. Kris Commons (Celtic) header from the centre of the box to the top left corner. Assisted by Mikael Lustig with a cross.
Substitution, Celtic. Tomas Rogic replaces Stefan Johansen.
Substitution, Celtic. Kris Commons replaces Scott Allan.
Attempt missed. Alper Potuk (Fenerbahçe) right footed shot from outside the box is high and wide to the right. Assisted by Souza with a headed pass.
Lazar Markovic (Fenerbahçe) wins a free kick on the right wing.
Foul by Jozo Simunovic (Celtic).
Attempt missed. Souza (Fenerbahçe) left footed shot from outside the box is high and wide to the left. Assisted by Gökhan Gönül.
Diego (Fenerbahçe) is shown the red card for violent conduct.
Abdoulaye Ba (Fenerbahçe) wins a free kick in the defensive half.
Foul by Nadir Ciftci (Celtic).
Offside, Fenerbahçe. Gökhan Gönül tries a through ball, but Diego is caught offside.


Goalkeeper Mary Earps has become one of four first-team players to commit to Bristol Academy for 2015.

Earps, 21, became the first signing for Vixens manager Dave Edmondson in March and made 19 appearances in all competitions last season.
Jasmine Matthews, 21, has also agreed a new deal with the Women's Super League side, along with fellow defenders Loren Dykes, 26, and Frankie Brown, 27.
Grace McCatty and Sophie Ingles have already secured new contracts.
But Edmondson may still look for further additions following the departures of Corrine Yorston, Jemma Rose, Alex Windell, Laura Del Rio, Natalia and Natasha Harding.


Two former Congolese militia leaders have been transferred from the Netherlands to a prison in the Democratic Republic of Congo (DRC).

Thomas Lubanga and Germain Katanga are the first ICC convicts to be allowed to serve sentences in their home country.
Former warlord Lubanga is serving 14 years for his crimes, while militia chief Katanga is due to be released in 2016.
The ICC says it will help supervise their imprisonment in the DRC.
Lubanga and Katanga "have both expressed a preference to serve their respective prison terms in DRC, their country of origin", the court said in a statement.
Their detention in the DRC must conform to international norms on the treatment of prisoners, it said.
Lubanga was once one of the most feared rebel leaders in the gold-rich northeastern Ituri region of the DRC.
He was found guilty of abducting children as young as 11 and using them to fight his battles.
Katanga was convicted for his involvement in a bloody massacre that left hundreds of villagers dead.
Last month, the ICC cut Katanga's 12-year prison term after he voiced regret and for good behaviour.
But Lubanga's request for early release was rejected by the ICC as "unjustified".
The ethnic conflict in Ituri between 1999 and 2003 is estimated to have killed 50,000 people.


New Zealand and Yorkshire batsman Kane Williamson has been banned from bowling in international and domestic cricket because of an illegal action.

The off-spinner was reported to the International Cricket Council after June's second Test against West Indies.
He took one wicket in 15.2 overs as the Windies won that Test by 10 wickets.
Analysis at Cardiff Metropolitan University found the 23-year-old's elbow extension when bowling exceeded the 15 degrees allowed under ICC rules.
The ban also applies to county cricket, where Williamson has taken five wickets from 61.4 overs for Yorkshire in the County Championship this season.
Williamson said: "I will focus on changing whatever's necessary to return to the bowling crease.
"Clearly, the onus is on me to satisfy assessors as to the legality of my action, and I'm aware I have some hard work in front of me to achieve that goal.
"It's never nice, going through this sort of process but it will be worth it if I can manage to bowl again at international level."
Although primarily a batsman, Williamson's part-time spin has often been used by New Zealand, where he has captured 24 wickets in 34 Tests and 23 victims in 54 one-day internationals.
The ICC recently banned another off-spinner, Sri Lanka's Sachithra Senanayake, for an illegal action.


The absence of Andy Murray and Milos Raonic may not prevent a dramatic weekend from unfolding in snowy Ottawa, but after the thrills of the Australian Open, the Davis Cup is struggling to make its voice heard as it returns for another year.

Great Britain start clear favourites to reach the quarter-finals for the fourth year in a row. While Dan Evans and Kyle Edmund are both ranked in the world's top 50, Canada are unable to field any singles players in the top 100. And they are not alone.
There remains a lot of affection for the 117-year-old competition around the world. Last year's Davis Cup was staged in 58 countries and featured 618 players from 124 different nations.
On a good weekend, the atmosphere is unrivalled in tennis - just ask those lucky enough to be in Glasgow, Birmingham or at the Queen's Club for recent British ties, or in Zagreb in November where Argentina won the cup for the first time over the course of three memorable days.
And yet this week, Serbia's Novak Djokovic is the only member of the world's top 10 in action.
There is once again no Roger Federer or Stan Wawrinka for Switzerland; Rafael Nadal was a late withdrawal from the Spain team; Japan's Kei Nishikori is preferring to play ATP Tour events in Buenos Aires and Rio later in the month; and last year's runners-up, Croatia, will have to do without Marin Cilic. Their number one player for the week is Franko Skugor - their fifth-best player, according to the rankings, and outside the world's top 200.
That is not part of the plan. It is unsustainable.
A package of reforms is under discussion, and will be put to the International Tennis Federation's (ITF) member nations during August's AGM in Vietnam. The problem is a lukewarm initial response from players, and an increasing lack of support from the main tours. The ATP and the WTA see the Davis Cup and the women's Fed Cup as competitors, not partners.
Reducing five-set matches to three is on the agenda, and likely to prove popular. However. that in itself is unlikely to encourage the top players to commit to playing up to four weeks of Davis Cup each year, given the first round currently follows the Australian Open and the semi-finals are the week after the US Open.
The ATP's interest is in maximising the strength of its tour: senior figures indicate privately the likelihood of a more confrontational approach in future. If the ITF were to attempt to schedule the Davis Cup in different weeks, they could expect to find ATP events - with ranking points and the potential for far greater financial rewards - running alongside them.
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The formation of a 16-team Fed Cup World Group has also been proposed by the ITF. This would include a 'final four' event to avoid an extra week being added to the schedule, but there seems little desire within the ITF to budge from four weeks of Davis Cup tennis per year.
These weeks can be hugely valuable in raising revenue and increasing exposure in countries where tennis does not have a huge following. Pakistan, for example, have the chance to host Iran in Islamabad this week, while in Tunis, Tunisia take on Sweden.
Undesirable though it is for the ITF, the number of weeks of World Group tennis will need to be reduced if the Davis Cup is going to thrive. But even that is not as easy as it sounds.
An annual World Cup style tournament - or the biennial staging of the event - would significantly reduce exposure to the competition. And the establishment of a 'final four' event may not be well received by players, given their initial hostility to the ITF's proposal for fixed host cities for the final.
Andy Murray, who was elected to the ATP Player Council last year, addressed that idea during the Australian Open.
"I sat in a room with all of the guys on the player council, and nobody was for the neutral venue," the British world number one explained, wary of a potential lack of atmosphere in non-partisan cities. (The ITF, keen to promote the final much earlier than it currently can, points to away support in excess of 5,000 fans at each of the last three Davis Cup finals).
"There were many things discussed that could change the Davis Cup, we thought for the better," Murray, who inspired Great Britain to victory in the tournament in 2015, added. "None of that's been done yet.
"I do think it needs to change. If the top players aren't playing, the event loses value."
And so to this weekend. Kyle Edmund and Denis Shapovalov may yet be called upon to settle matters in a fifth and final rubber - and I am sure those in attendance will have a hugely enjoyable three days.
It is just unlikely to be a major talking point in either Canada or Britain during the Monday morning commute.
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The European Commission has accused Turkey of "serious backsliding" in rights and the rule of law since a failed coup on 15 July.

An EU official said Turkey was not heading in a European direction, as he gave an annual appraisal of its progress towards EU membership.
The Turkish president challenged the EU to "make your final decision".
For days there has been a war of words, with Europe accused of failing to take terrorism in Turkey seriously.
And a Turkish minister rejected the latest appraisal as "not objective".
The worsening relations have led to fears that an EU-Turkey deal on migrants in March could collapse.
Under the March 2016 agreement, migrants arriving in Greece are now sent back to Turkey if they do not apply for asylum or their claim is rejected, but Turkey complains it has not got its end of the bargain.
A conditional promise of visa-free travel now seems a long way off.
Nonetheless, the Commission statement stopped short of severing talks or imposing sanctions - reflecting the reliance of each side on the other, say commentators.
Negotiations on Turkey's accession to the EU began in 2005, and its progress on 72 benchmarks are reported on annually along with other would-be new members.
In a tweet sent as the report was launched, EU enlargement commissioner Johannes Hahn said there had been "serious backsliding in areas of #RuleofLaw and #fundamentalrights". The post-coup crackdown, he said, had "affected all spectrums of society".
The Commission highlighted several issues of concern including:
In a statement on Tuesday, EU foreign policy chief Federica Mogherini, condemned last Friday's bomb attack in the south-eastern, mainly Kurdish city of Diyarbakir which followed the HDP detentions and killed 11 people, demanding an end to violence.
But she added that actions against the outlawed Kurdistan Workers' Party (PKK) had to be proportional and respect human rights.
European Commission President Jean-Claude Juncker, meanwhile, used blunt words to voice his disdain for Turkish actions.
"I say this with bitterness, I who am a friend of Turkey, that every day Turkey is moving further away from Europe," he said on Tuesday. "We need Turkey... but we cannot compromise on our main principles", he said, challenging Turkey to "clearly say whether it wants to be a member of the EU or not".
Earlier this week, Luxembourg Foreign Minister Jean Asselborn compared Turkey's purge to methods used by Nazi Germany.
The EU's criticisms have been angrily rejected by Turkish leaders.
On Tuesday, the Turkish foreign ministry branded the criticisms "unacceptable", saying European nations "insistently refused to understand Turkey's sensitivities concerning terrorism" - and for tolerating the PKK despite its EU status as a terrorist organisation.
"The EU has lost its plausibility and credibility with the Turkish people on the issue of the struggle against terrorism," the statement said.
President Recep Tayyip Erdogan gave a frustrated response on Wednesday, telling a business group in Istanbul: "They say unabashedly and shamelessly that the EU should review its negotiations with Turkey."
"You are late, go and review them as soon as you can. But don't just review them - go and make your final decision."
He referred explicitly to the migrants packed into Turkish camps under the terms of the March deal, saying: "What if the negotiations end and they open the gates, where would we put those three million refugees?
"That is their worry. That is why they cannot come to the end point.''


In politics you can sometimes gauge the level of panic and fear by the speed with which previously held principles are set aside.

So with the migrant crisis.
Some open borders have been suspended, governments are contemplating talking to President Assad, long denounced as a brutal dictator, and a deal is being hastily concluded with Turkey, widely held to be an increasingly authoritarian country.
And then what is being debated in Germany - containment camps on its borders and a police union chief urging Germany to build a fence along its border with Austria - are all indicators of the political tension gripping Berlin.
Angela Merkel has called her decision to open Germany's borders to refugees a "historic challenge" - but she is no longer in charge of events.
Her increasingly restive party is muttering she is "without a plan".
So the overture to Turkey - it is born out of the failure of other policies.
Germany had put great store by burden-sharing, by getting other countries to accept quotas.
It was muscled through a meeting of EU interior ministers against the wishes of several countries.
But only a handful of refugees have been relocated. Many others are refusing to leave Germany.
It is the case that many of those seeking asylum in Germany are from Kosovo and Albania.
Both countries are considered safe and the government in Berlin wants people returned there as quickly as possible.
It did not take long for the migrants to get medical certificates which prevent them being deported.
So Turkey came to be seen as the key to managing the crisis.
The EU wants Turkey to slow the numbers crossing the Aegean.
It also wants Turkey to take back any migrants who are refused asylum and entry into the EU.
Even though Turkey is only a couple of weeks away from a sensitive election, Angela Merkel has hurried to Ankara to meet with the President and the Prime Minister.
The President of the European Council Donald Tusk was clear "an agreement with Turkey makes sense only if it contains the flows of refugees".
The Turks are in no hurry to conclude a deal.
They understand events have handed them powerful cards.
They also have a sense of grievance.
They have hosted two million Syrian refugees and feel that "the EU was not a partner".
"Unfortunately, Turkey was left alone by the international community," said the Prime Minister Ahmet Davutoglu.
The Turkish President Recep Tayyip Erdogan said: "We've spent $8bn until now. How much did the West give?"
The answer was a few hundred million dollars.
So the Turkish government wants funding - perhaps 3bn euros or more.
It wants a lifting of visa restrictions inside the open borders of the Schengen area.
It wants to see its application to join the EU "fast-tracked".
The EU has indicated that it is prepared to support opening Chapter 17 of the accession process which deals with economic and monetary affairs.
Turkey was accepted as a formal candidate to join the EU in 1999.
It was a slow process. Not all of Europe's leaders wanted Turkey in the union.
The former French President Nicholas Sarkozy said: "The EU is primarily for the European continent. To my knowledge our Turkish friends - a great power, a great nation - are mainly in Asia Minor."
Only recently the German Chancellor said that: "I still have hesitations over Turkey's full membership."
The hesitations were not just about the impact of having such a large country join the Union.
Can deeds match words?: The challenges ahead for the EU and Turkey
The pull of Europe: Five migrant stories
Merkel under pressure: Chancellor's migrant policy faces criticism at home
Focus on Turkey: Why the EU views Syria's northern neighbour as key
Crisis in graphics: Migration numbers explained
There were increasing concerns about the authoritarian leadership of Erdogan, the leader of the AKP, an Islamist Party.
The media is not free. Journalists are frequently under pressure of arrest. Some reporters have been jailed.
Papers and TV networks have been restricted in reporting the investigation into the recent Ankara bombings.
The courts are not always impartial and the rights of the Kurdish minority are under threat.
Many members of the European Parliament believe their concerns about basic human rights have not been addressed and are now being set aside.
The fact that Angela Merkel was prepared to shake the hand of the Turkish President in the midst of a controversial election campaign is a sign of Europe's desperation.
Earlier in the year Mr Erdogan's party had lost its majority after 13 years in power.
Attempts at forming a coalition failed and the President has called fresh elections.
His opponents accuse him of using a bomb attack to launch raids against the Kurds and so widen political divisions.
In just five weeks from the beginning of September Germany accepted some 409,000 arrivals.
The states and local councils are at breaking point and Angela Merkel is facing fierce criticism from within her own party.
To relieve that pressure back home she has turned to Turkey but at a cost.
The publication of the EU's annual progress report on Turkey's EU membership, which almost certainly contains criticism of the Turkish leadership, has now suddenly been delayed - probably until after the Turkish election.
Compromises unimaginable just weeks ago are now being embraced.
Berlin is hoping that the onset of winter will slow the arrival of refugees for several months.
It is a race against time. The German government needs a breathing space.
Angela Merkel says it is "the most difficult task I've experienced in my Chancellorship".
It will, without doubt, define her legacy.


The International Amateur Boxing Association has confirmed that headguards will be removed from men's amateur boxing but not for women.

Headguards were first introduced into competition in 1984 but will be removed again for October's World Amateur Boxing Championships in Kazakhstan.
The decision was based on two separate studies which put forward evidence that the removal will decrease concussions.
Women and male boxers below senior level will continue to wear headguards.
AIBA's medical commission studied more than 2,000 bouts and independent research in a recent article, which studied 30,000 contests over 59 years, in the British Journal of Sports Medicine both supported the removal.
The International Olympic Committee has yet to officially confirm that headguards will be removed for the 2016 Rio Olympics but their medical commission were part of the discussion process with AIBA.
"It is AIBA's duty to bring the sport of boxing to the pinnacle of the Olympic movement and I am convinced that these changes will critically contribute to the development of our beloved sport," said AIBA president Dr Ching-Kuo Wu.
Some elite male amateur boxers have competed already without headguards in the World Series of Boxing which is a semi-professional franchise-based branch of AIBA in which Great Britain are represented by British Lionhearts.
WSB began in 2010 and includes team and individual competitions, with the latter offering Olympic places for successful participants.
AIBA is also set to launch its own professional boxing body (APB) later in 2013 which will allow, like WSB, amateur boxers to earn purses for competing while maintaining their Olympic eligibility which was previously prohibited.
All three forms of the sport will also be judged on the 10-point must system as the computer-based points-scoring system, which has been in place since the 1992 Barcelona Olympics, is to be abandoned.
May's European Amateur Boxing Championships in Belarus are expected to be the final major men's international competition to use headguards with the official date of 1 June 2013 for their removal.


Giselle Ansley scored two penalty corner goals as Great Britain drew 2-2 in the fourth game of the six-match series against Australia in Perth.

The Surbiton defender struck her first GB goal in the first half to cancel out Georgia Nanscawen's opener.
She grabbed her second 10 minutes from time, finding a gap between Ashlee Wells' pads via a slight deflection.
But Emily Smith equalised late on to leave the series tied at 1-1 with two matches to play.
"We were very fortunate to get a draw," said GB coach Danny Kerry. "Many aspects of our game were not where they needed to be.
"Having said that we have needed to and have shown plenty of grit and I'm pleased for Giselle scoring her corners."
The third match also ended in a draw, with GB winning game two.