by lysias
Fri Sep 25, 2009 at 09:17:30 AM PDT
I couldn't help but notice a photograph on Page A16 of today's Washington Post showing demonstrators against the G-20 meeting in Pittsburgh running away from "an ear-splitting siren" used by the police to disperse protesters.
The Washington Post story mentions "sound cannons".
Here's more mention in an AP report:
The marchers did not have a permit and, after a few blocks, police declared it an unlawful assembly. They played an announcement over a loudspeaker ordering people to leave and then police in riot gear moved in to break it up. Authorities also used a crowd-control device that emits a deafening siren-like noise, making it uncomfortable for protesters to remain in the area.

Brian Black of Taser International demonstrates their X26 model at a trade show for the Canadian Association of Chiefs of Police in Montreal August 26, 2008. (REUTERS/Christinne Muschi)

The FBI's annual crime report is based on statistics provided by almost 18,000 law enforcement agencies.
Members of the 'Rastrojos' drug trafficking group after surrendering weapons in Carepa province in Medellin, Colombia, May 21, 2009. (Photograph: Fredy Amariles/Reuters)
