http://www.kwgn.com/…

The American Civil Liberties Union says undercover police officers posing as protesters staged a violent confrontation with another officer during the Democratic convention in Denver.

The ACLU said it obtained a police document showing the undercover officers pretended to struggle with a police commander so they could be removed from the crowd without blowing their cover.

The ACLU says another officer thought the commander was being attacked and pepper-sprayed the undercover officers.

It’s not clear how many officers were involved or how they were affected by the spray.

Denver police spokesman Sonny Jackson told The Associated Press he was unaware of the report and couldn’t comment. The ACLU didn’t immediately return a message.

Wouldn’t be a surprise. This happens all the time. Happened at the 2004 RNC, WTO protests, etc.