161015-N-LV331-001 BALTIMORE (Oct. 15, 2016) Secretary of the Navy (SECNAV) Ray Mabus greets members of the audience attending the commissioning ceremony for the Navy's newest and most technologically advanced warship, USS Zumwalt (DDG 1000). (U.S. Navy photo by Petty Officer 1st Class Armando Gonzales/Released)