U.S. warns Britain over new WikiLeaks revelations that will 'expose corruption between allies'

From MailOnline.

David Cameron was warned last night by America that damaging secrets of the ‘special relationship’ are about to be laid bare.
The U.S. ambassador to London made an unprecedented personal visit to Downing Street to warn that whistleblower website WikiLeaks is about to publish secret assessments of what Washington really thinks of Britain.
The website is on the verge of revealing almost 3million documents, including thousands of sensitive diplomatic cables sent to Washington from the American embassy in London.
The bombshell leak is thought to include U.S. assessments of Gordon Brown’s personality and his prospects of winning the General Election, and secret discussions on the return of the Lockerbie bomber to Libya.
Assessments of David Cameron’s election chances and his private assurances to U.S. officials may also be included, Government sources believe.
They fear they will emerge on Sunday in co-ordinated releases in newspapers in Britain, Germany and America.
The British government is so worried that last night it issued a D-Notice, warning that publishing the secrets could compromise national security...

There are fears of even the most apparently trivial secrets being hugely damaging.
One British official said they feared that mutual American and British contempt for the French would emerge.
‘Moaning about the French was practically a sport,’ he said...

However, according to the UK-based Arabic daily newspaper al-Hayat, the WikiLeaks release includes documents that show Turkey has helped Al Qaeda in Iraq - an extraordinary revelation which could kill off the country’s hopes of joining the EU...

The Washington Post reported that the files will contain allegations that the U.S. has supported the PKK, a Kurdish rebel organization that has been waging a separatist war against Turkey since 1984...