Adm. Mike Mullen comforts a family member at the Pentagon Memorial. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen comforts a family member at the Pentagon Memorial during the 8th anniversary ceremony on Sept. 11, 2009. The passage of eight years cannot diminish the terrible memories of Sept. 11, 2001. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 849900-V-BMU58-419.jpg Photo Gallery