The head of the parliamentary committee which oversees the work of Britain's intelligence agencies has said that newly imposed airport security measures are "unavoidable".
Sir Malcolm Rifkind, the chairman of the Intelligence and Security Committee, said jihadi extremists were deploying "devilish technical skill" to create ever more sophisticated devices to evade existing security measures.
Writing in The Sunday Telegraph, he warned of the dangers of "complacency" among the public in the face of the failure of the terrorists to mount any successful mass casualty attack in the UK since the 7/7 bombings in London in 2005.
More top news
Hot and humid throughout the Bank Holiday Weekend.
The airline has cancelled all flights from Heathrow and Gatwick before 6pm on Saturday.
The Hollywood couple, who have been married for 17 years, said they still have "tremendous love and respect for each other".