LEADER TESTIMONY Defense Secretary Chuck Hagel, right, Secretary of State John F. Kerry, center, and Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, testify on the potential use of U.S. military force in Syria during a hearing before the Senate Foreign Relations Committee in Washington, D.C., Sept. 3, 2013. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 962542-A-XVZ55-831.jpg Photo Gallery