Federal lawsuit claims brutal tactics used by Chicago police against protesters

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Portland bans police from working with federal law enforcement, targeting journalists and legal observers during protests

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60 Protesters Sue City, Alleging Chicago Police Abused Them 'Without Justification' At Summer Protests

Protests over police killings rage in dozens of US cities – Orange County Register

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Portland Protest Groups Sue Over US Agents' Use of Tear Gas, Rubber Bullets

Professor Crespo says events in Portland raise serious concerns about unlawful police tactics - Harvard Law School