MULLEN SPEAKS AT DEDICATION Chairman of the Joint Chiefs of Staff U.S. Navy Adm. Mike Mullen speaks at the Pentagon Memorial Dedication Ceremony, Sept. 11, 2008. The national memorial is the first to be dedicated to those killed at the Pentagon on Sept. 11, 2001. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 002822-H-FVR68-508.jpg Photo Gallery