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Britain to use sonic device at Olympics

  • Britain is to use a sonic device that can serve as a high-volume loudspeaker or as a non-lethal weapon to disperse crowds at the London Olympics.

    The equipment is capable of projecting a piercing sound over hundreds of metres that causes physical pain.

    The Ministry of Defence has insisted it expects to primarily use the device as a loudspeaker.

    Defence chiefs have already created controversy by announcing plans to place surface-to-air missiles on top of residential buildings near the Olympics site.

    Police and military planners are preparing for a range of security threats including protests and attacks using hijacked airliners.

    13,500 soldiers will assist the police during the Games, which run from July 27 to August 12.