Mega-events are often the time for some surveillance / control / security innovation and experimentation by states. In what seems to be a rather unwelcome first, the Pittsburgh police have used a military sonic canon to clear protestors off the streets at the G20 summit. These devices are among many so-called ‘sub-lethal weapons’ (see the article by Steve Wright here) that have been gradually migrating from military to civilian use for a number of years – see for example the ongoing debate over the use in the UK of the ultrasonic ‘Mosquito’ device, which is supposed to target young people; its makers rather cynically advertise it as ‘so effective that they tried to ban it’.
The particular weapon used by the Pittsburgh police is the Long Range Accoustic Device (LRAD) made by the American Technology Corporation, which generates a piercing noise that is not only extremely unpleasant, it can damage eardrums and cause heart problems. It was rather eeriely appropriate to see them being used (as you can on The Guardian‘s website) on the same day that TNI / Statewatch released their report on the security-industrial complex and a reminder that this is a global phenomenon.