In this video it appears as if police decided to test out new anti-riot gear on the students at the University of Pittsburgh. Weapons used in the video include "less lethal munitions," sound weapons, and tear gas.
What is the threshold for the use of less lethal munitions against Americans? Now we know.
In the next video, it's not clear what objective the police are trying to achieve by chasing the students into their dormitories. The scene scared the hell out of the girls who made this video:
Have sonic weapons ever been used on American civilians before? See "The first use of sonic weapons on US citizens."
Quotes from a good discussion on non-lethal weapons.
DESAI: There is no national repository of data on less-lethal weapons, nor are there national testing or evaluation standards for less-lethal weapons. Sid Heal is an expert on less-lethal weapons and a commander with the Los Angeles County Sheriff's Department. He asserts the federal government hasn't put any money into creating a database or setting standards, so police are forced to rely on weapons manufacturers for information and training.
Mr. SID HEAL (Los Angeles County Sheriff's Department): Most of them are telling us the truth; they're just not telling us the whole truth. Not a single thing out there provides an advantage without some trade-off. What we're missing is the trade-offs.
Professor CHRIS STONE (Harvard University): They're sometimes using a less-lethal weapon when they wouldn't have used any weapon at all. That can be a good thing if it's used properly. But the challenge that we found is that the weaponry has gotten ahead of the training, ahead of the policies, ahead of the planning.UPDATE 2
See new post "First use of sonic weapons on American citizens"