Gen. Dempsey testifies during a hearing of the Senate Armed Services Committee on Benghazi Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey testifies during a hearing of the Senate Armed Services Committee on the Defense Department’s response to the attack on U.S. facilities in Benghazi, Libya, and the findings of its internal review following the attack on Feb. 7, 2013. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 418569-R-BBK16-884.jpg Photo Gallery