Former American vice president Dick Cheney recently warned that America was threatened by a new terrorist attack. The CIA fears such a scenario, while their head believes the biggest threat comes from Great Britain.

According to the Daily Telegraph, the CIA has started spying operations in Britain to prevent activities of Pakistani-British extremists and 9/11 happening all over again. They believe that British extremists, rooted in Pakistan, might legally enter the USA with visas. They also claim that intelligence services have notified Barack Obama of their new spying operation. According to the DailyTelegraph, the MI5 has identified 2,000 suspects for terrorism in Britain, while the CIA has initiated 10 operations to control their movements.

Former CIA official who was Obama`s advisor, told the Daily Telegraph that their operation was increased after the terrorist attack on Mumbai. Furthermore, the CIA has been developing an agent network in Britain for 18 months.

British-Pakistani terrorists are al-qaeda`s best mechanism

It is claimed that the CIA is working closely with the British MI% intelligence service.

- President Obama's national security team are well aware that this is a serious threat. Around 40 per cent of CIA activity on homeland threats is now in the UK. This is quite unprecedented – Riedel said, who was the White House National Security Council expert for the Middle East.

MI5 operations are not enough

Although the MI5 is planning on doubling its membership until 2011, when the number should be 4,100 members, many within the American intelligence believe that this is not enough and that Brotons cannot stop the activities of potential terrorists on their own, the Daily Telegraph writes.

Otherwise, American-British relations became a bit strenuous when the British Supreme Court accused the USA of threats last week. It claimed that the USA was planning on withdrawing intelligence information if the documents on the abuse of Guantanamo prisoner Binyam Mohamed were published. Experts of intelligence services believe that such information remaining secret was the key to national security.