U.S. Sen. James Inhofe, left, the ranking member of the Senate Armed Services Committee, questions Secretary of Defense Chuck Hagel and Chairman of the Joint Chiefs of Staff U.S. Army Gen. Martin Dempsey as they testify about U.S. policy toward Iraq and Syria and the threat posed by the Islamic State in Iraq and the Levant during a hearing Sept. 16, 2014, at the Hart Senate Office Building in Washington.