Britain to use sonic device at Olympics
May 12 , 2012
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.