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WASHINGTON, DC - NOVEMBER 04: Assistant Secretary of State for Near Eastern Affairs, Anne Patterson testifies during a House Foreign Affairs Committee hearing on Capitol Hill, November 4, 2015 in Washington, DC. The committee is hearing testimony from State DepartmentÊofficials onÊU.S. policy after Russia's escalation in Syria. (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - NOVEMBER 04:  Assistant Secretary of State for Near Eastern Affairs, Anne Patterson testifies during a House Foreign Affairs Committee hearing on Capitol Hill, November 4, 2015 in Washington, DC. The committee is hearing testimony from State DepartmentÊofficials onÊU.S. policy after Russia's escalation in Syria.  (Photo by Mark Wilson/Getty Images)