Activists burn tyres at barricades close to Independence Square, the epicenter of the country's current unrest, in Kiev, Ukraine, Thursday, Feb. 20, 2014, as, according to the protesters, the resulting heavy black smoke does not allow riot police snipers to aim easily at protesters. Fierce clashes between police and protesters in Ukraine's capital have shattered the brief truce Thursday and an Associated Press reporter has seen dozens of bodies laid out on the edge of the protest encampment. (AP Photo / Efrem Lukatsky)
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