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):
And here are other Twitter users chuckling at the Occupy freaks freaking out:
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: