THANKING KARZAI U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, thanks Afghanistan President Hamid Karzai and Defense Minister Abdul Rahim Wardak after touring Arlington National Cemetery's Section 60, Arlington, Va., May 13, 2010. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 351112-Y-ZEL76-133.jpg Photo Gallery