Via dailyfinance.com:Pittsburgh police on Thursday used an audio cannon manufactured by American Technology Corporation (ATCO), a San Diego-based company, to disperse protesters outside the G-20 Summit — the first time its LRAD series device has been used on civilians in the U.S.“The police fired a sound cannon that emitted shrill beeps, causing demonstrators to cover [...]

Visions of Waco fly through my head....