This is an exclusive from The Currant Bun, (The Sun) which has been taken up by the Jerusalem Post
COPS fear that 25 British-born Muslims are plotting to bomb Western airliners.
The fanatics, in five groups, are now training at secret terror camps in Yemen.
It was there London-educated Umar Abdulmutallab, 23, prepared for his Christmas Day bid to blow up a US jet.
The British extremists in Yemen are in their early 20s and from Bradford, Luton and Leytonstone, East London.
They are due to return to the UK early in 2010 and will then await internet instructions from al-Qaeda on when to strike.
A Scotland Yard source said: "The great fear is Abdulmutallab is the first of many ready to attack planes and kill tens of thousands.
"We know there are four or five radicalised British Muslim cells in the Yemen.
"They are due back within months when they will be under constant surveillance."
The 25 suspects, of Pakistani and Somali descent, were radicalised in UK mosques.
The strange thing is that one of the oldest Muslim communities in England are the descendants of Yemeni seamen who settled over 70 years ago in ports on the North East coast, Hartlepool and nearby, and who never seem to be involved in any of thse plots.
Some had been to university and studied engineering or computer sciences.
Others were former street gang members.
Special Branch monitored them as they flew to Yemen, in the Middle East, from British airports in the spring and summer.
In almost every case, their tickets were paid for in cash and bought less than a week before travel.
PM Gordon Brown and Metropolitan Police Commissioner Sir Paul Stephenson were being briefed.
Why do we have to let them back in? Don't say because they hold British passports - we are at war and they are traitors.
"Detroit terror attack: Yemen is the true home of Al-Qaeda"