Guardian:

Military snipers are to be deployed in helicopters during the London Olympics and if required will shoot pilots of low-flying aircraft that might be involved in terrorist attacks, it emerged on Monday.
A team of seven snipers is being given "comprehensive on-the-ground and in-the-air training" as part of the all encompassing security operation being undertaken by the police and the army.
General Sir Nick Parker, who is in charge of co-ordinating the armed forces during the 2012 Games, described the role of the snipers as he revealed the six sites where anti-aircraft missiles may be based as part of the security operation.
The four that are in open spaces – at Blackheath, Lea Valley reservoir, Shooters Hill and Epping Forest – will be home to a battery of Rapier surface-to-air missiles, which are the UK's primary air defence weapon.
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