091110-N-0696M-501 President Barack Obama, First Lady Michelle Obama, Defense Secretary Robert M. Gates, Joint Chiefs Chairman Navy Adm. Mike Mullen, Army Secretary John M. McHugh and Army Chief of Staff Gen. George W. Casey Jr. at Fort Hood, Texas, participate a ceremony to honor the victims of the Nov. 5 shooting rampage that left 13 dead and 38 wounded.DoD photo by Mass Communication Specialist 1st Class Chad J. McNeeley/Released)