U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, visits a memorial commemorating seven CIA agents that were killed in a December 2009 suicide attack on Camp Chapman, Afghanistan, July 31, 2011. U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, visits a memorial commemorating seven CIA agents that were killed in a December 2009 suicide attack on Camp Chapman, Afghanistan, July 31, 2011. SHARE: Download: Full Size (1.96 MB) Tags: Photo Essays Credit: VIRIN: 901425-J-KUZ88-332.jpg Photo Gallery