http://news.bbc.co.uk/2/hi/uk_news/4778575.stm
'Airlines terror plot' disrupted
A plot to blow up planes in flight from the UK to the US and commit "mass murder on an unimaginable scale" has been disrupted, Scotland Yard has said.
It is thought the plan was to detonate explosive devices smuggled in hand luggage on to as many as 10 aircraft.
Police are searching premises with 21 people in custody after arrests in London, High Wycombe and Birmingham.
High security is causing delays at all UK airports. The threat level to the UK has been raised by MI5 to critical.
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