I have friends who are cops. I don’t hate cops, but I’m wary of the government monopoly on violence. It’s important to remain vigilant for excesses.
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I can imagine some expert saying about this animated gif: “to the untrained eye, this may look like police brutality, but . . .” (Large file may load slowly.)

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Brave NYPD Officer Exposes Corruption – Cops Ordered to Make Arrests to Meet Quota
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Police beat man to death at DUI checkpoint
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Driving 70 in a 65. Woman tased for getting out license too slowly
www.copblock.org/
not having to ever interact with cops is reason #1 for not driving :)
Fantastic video. I posted it a while ago. Perhaps it deserves a re-post.