Guardian Unlimited | Special reports | Pilots call for evaluation of US intelligence: "The British Airline Pilots' Association (Balpa) is calling on the UK government to evaluate fully the 'strength and validity' of the security information [from US intelligence services] that has led to disruption for hundreds of holidaymakers.

Terrorism specialist Simon Reeve, author of the book on al-Qaida, The New Jackals, said the pilots' union was right to be sceptical about the quality of the intelligence that has prompted the cancellations. He told the Press Association: 'I think some of the evidence, some of the intelligence surrounding these threats is tenuous to say the least. "