Calls to ban 'anti-teen' device

A high-pitched device used to disperse teenagers is being challenged by campaigners, who say it is not a fair way to treat young people. ... Their sound causes discomfort to young ears - but their frequency is above the normal hearing range of people over 25. ... What type of society uses a low-level sonic weapon on its children?

2008-02-12

 fascism physics sound UK ear weapon

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