150109-N-ZI511-082 WASHINGTON (Jan. 9, 2015) Ms. Eleanor Rickover, Secretary of the Navy (SECNAV) Ray Mabus, Chief of Naval Operations (CNO) Adm. Jonathan Greenert and Mrs. Darleen Greenert talk together after the 60th anniversary of Underway on Nuclear Power ceremony. Top Navy leadership joined members of industry and members of Congress to acknowledge how nuclear power has propelled the Navy's forward presence for over half a decade. (U.S. Navy photo by Chief Mass Communication Specialist Julianne F. Metzger/Released)