The older archives (>10 years old) have been substantially recovered -- more than 23,800 files' worth -- and are now reachable through the search engine and via file download. Email here if you have any questions.
Your support is essential if the service is to continue, there are bandwidth bills to pay every month and failing disk drives to replace. Volunteers do the work, but disk drives and bandwidth are not free. We encourage you to contribute financially, even a dollar helps. Click here to donate.
Welcome to the new Radio4all website! If you cannot log in, you may need to reset your password. Email here if you need additional support.
Program Information
Long Range Accoustic Devices may not be an effective police tool
Alex Bradley, Robert Putnam
 Aaron  Contact Contributor
June 23, 2010, 11:15 a.m.
Two interviews on the effects of the Long Range Accoustic Device (LRAD), also referred to as "sound cannons", which could be used by the police at the G20 summit in Toronto.
Produced by Aaron Lakoff at CKUT radio in Montreal

Contact: aaronlakoff (at)
As the G20 summit in Toronto draws closer, and the fences go up, anger continues to boil in Canada's largest city about the $1 billion dollars which the state has spent on security.

Amongst the large police arsenal which could be deployed against protestors at the G20 is the much feared Long Range Accoustic Device (LRAD), which many call "sound cannons". LRAD's have been used by police in protest situations to emit an extremely loud, high-pitch tone in order to disperse crowds. Many fear that this device could cause long-term hearing damage.

However, we spoke with two people who have much experience with the LRAD, who both attest that the LRAD may not be as effective as the police would like the public and protestors to believe.

Alex Bradley is a member of the Pittsburgh Organizing Group, and experienced the LRAD when it was used by the police against protestors at the G20 summit in Pittsburgh in September, 2009.

Robert Putnam is in in charge of investor and media relations for the LRAD company, which manufactures and distributes the LRAD out of San Diego.

For more information, visit:

Download Program Podcast
00:19:04 1 June 23, 2010
  View Script
 00:11:11  128Kbps mp3
(10MB) Mono
510 Download File...
Download Program Podcast
00:19:04 1 June 23, 2010
  View Script
 00:07:53  128Kbps mp3
(7MB) Mono
457 Download File...