I have reposted this as a favor to everyone protesting in Chicago against the NATO summit. The original Youtube URL was http://www.youtube.com/watch?v=qGEoxDdurHg , but the video came up as "unavailable" in the browser. Other Youtube videos will play, but a LOT of Chicago NATO protest coverage is blocked in some way. Specialized downloading tools can still get the files, so I've reposted this one here. It will probably become available on Youtube after the summit is over...

Original description:

Tracey Pollock, a credentialed photographer for The UpTake, is attacked by police in Chicago during an anti-NATO protest on Saturday. Before the attack, police were using their bicycles as weapons to force back the crowd which was staging a march without a permit.
Police had formed a barricade; as you can see from the video, there was some sort of incident along the barricade. Pollock tried to get closer to see what was happening when a police officer reached up, grabbed her lens and tried to rip her camera away. The officer then pushed her over some bicycles.

Pollock was wearing a large press badge and as you can hear from the audio, even bystanders could tell she was part of the press. Protesters behind the bicycles pulled her to safety.

Pollock was bruised in the incident but not seriously injured. She says she never crossed the police barricade.