Gas mask with filter canister worn at demonstrations in Ferguson, Missouri

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Fresh Tensions Flare In Ferguson, Mo., With More Tear Gas, Looting : The Two-Way : NPR

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Subject of iconic Ferguson, Mo., photo talks about anger and excitement that led him to throw tear gas canister – New York Daily News

Filter canister hi-res stock photography and images - Alamy

Subject of iconic Ferguson, Mo., photo talks about anger and excitement that led him to throw tear gas canister – New York Daily News

Gas mask demonstrations hi-res stock photography and images - Alamy

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Protests over Ferguson continue

How Ferguson activists took control of St. Louis politics

Ferguson forced to return Humvees as US military gear still flows to local police, US policing