The Chicago Police Department will deploy an LRAD 1000Xi long-range acoustic device to relay dispersal commands to protesters. Sound can be heard in a 30-degree cone up to a kilometer away.
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Chicago PD's LRAD for NATO Summit
The Chicago Police Department will deploy an LRAD 1000Xi long-range acoustic device to relay dispersal commands to protesters. Sound can be heard in a 30-degree cone up to a kilometer away.
May 16, 2012