CALL TO SERVICE Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, addresses students during the keynote address at Florida A&M University's commencement ceremonies on May 1, 2010. Mullen gave the keynote address and commissioned 12 new officers into the Navy, Marine Corps and Army during the ceremony in Tallahassee, Fla. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 945068-W-CFM61-173.jpg Photo Gallery