July 16, 2001: British Intelligence Agencies Warn Al-Qaeda Is in the Final Stages of Preparing Attack in the West

British intelligence agencies send a report to British Prime Minister Tony Blair and other top officials warning that al-Qaeda is in “the final stages” of preparing an attack in the West. The prediction is “based on intelligence gleaned not just from [British intelligence] but also from US agencies, including the CIA and the National Security Agency,” which cooperate with the British. “The contents of the July 16 warning would have been passed to the Americans, Whitehall sources confirmed.” The report states there is “an acute awareness” that the attack is “a very serious threat.” [London Times, 6/14/2002] This appears to be similar, but not identical, to a warning to British leaders from MI5, Britain’s domestic intelligence agency, 10 days earlier (see July 6, 2001).