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 IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 849900-V-BMU58-419.jpg Photo Gallery