Riot police officers run through fire as anti-austerity protesters throw petrol bombs, during clashes in Athens, Greece, on July 15, 2015.
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Emilio Morenatti / AP
A tattoo on the knuckles of a Klansman reads Love as he participates with members of the Nordic Order Knights and the Rebel Brigade Knights, groups that both claim affiliation with the Ku Klux Klan, in a cross lighting ceremony on a fellow member's property in Henry County, Virginia. The Ku Klux Klan, which had about 6 million members in the 1920s, now has some 2,000 to 3,000 members nationally in about 72 chapters, or klaverns, according to the Southern Poverty Law Center, an organization that monitors extremist groups. Photo taken on August 9, 2014, released on July 16. 2015.
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Johnny Milano / Reuters
People wave Confederate flags outside the hotel where President Barack Obama was staying the night in Oklahoma City on July 15, 2015. Obama was traveling in Oklahoma to visit the El Reno Federal Correctional Institution.
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Evan Vucci / AP
Iranian women flash a heart sign during celebrations in northern Tehran on July 14, 2015, after Iran's nuclear negotiating team struck a deal with world powers in Vienna. Iranians poured onto the streets of Tehran after the Ramadan fast ended at sundown Tuesday to celebrate the historic nuclear deal.
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Atta Kenare / AFP / Getty