170907-N-MU551-130 ATLANTIC OCEAN (Sept. 7, 2017) Secretary of Energy Rick Perry, center, and Adm. James Caldwell pose for a photograph with other distinguished visitors as an F/A-18F Hornet, assigned to the "Gladiators" of Strike Fighter Squadron (VFA) 106, prepares to land on the flight deck aboard the aircraft carrier USS Harry S. Truman (CVN 75). Harry S. Truman is underway conducting carrier qualifications in preparation for future operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Mason Gillan/Released)