Here is an LRAD. It’s a Long Range Acoustic Device better known as a sound cannon and it’s used to disperse unruly crowds.
Here is an Occupy Chicago freakout over the LRAD (led by the same livestreamer who freaked out last night over a brief police stop):
https://twitter.com/#!/Timcast/status/204435108063739905
https://twitter.com/#!/johnzangas/status/204432845953970176
https://twitter.com/#!/DustinSlaughter/status/204427914379411456
https://twitter.com/#!/Timcast/status/204429226831650817
https://twitter.com/#!/tzeero4/status/204431374785052673
https://twitter.com/#!/Loldirtybastard/status/204429665379688448
https://twitter.com/#!/roastydog/status/204350944434073600
And here are other Twitter users chuckling at the Occupy freaks freaking out:
https://twitter.com/#!/LibertyLynx/status/204431353603821568
https://twitter.com/#!/Revenant0101/status/204432241034661888
Pssst. Hey, Occupiers: Nelly Furtado’s Billboard Music Awards performance was far more terrifying and damaging to the eardrums. That’s torture.
The snark continues:
https://twitter.com/#!/AnthonyBialy/status/204446030111047681
https://twitter.com/#!/AnthonyBialy/status/204446030111047681