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(EDUARDO MUNOZ ALVAREZ/AFP/Getty Images)

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Acting U.S. State Department spokesperson Marie Harf conducts a daily press briefing at the State Department April 8, 2015 in Washington, DC. (Alex Wong/Getty Images)

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Displaced Assyrians at the Ibrahim-al Khalil Melkite Greek Catholic church in the Jaramana district on the outskirts of the capital Damascus on March 1, 2015. (LOUAI BESHARA/AFP/Getty Images)

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Migrants from sub-Saharan Africa rest inside a detention center in the Libyan capital Tripoli on June 4, 2015. (MAHMUD TURKIA/AFP/Getty Images)

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Vladimir Kara-Murza (L) during a news conference on 'Corruption and Abuse in Sochi Olympics' January 30, 2014 at the National Press Club in Washington, DC. (Alex Wong/Getty Images)