171015-N-GC347-011 ATLANTIC OCEAN (Oct. 15, 2017) Sailors participate in a mass casualty drill aboard the aircraft carrier USS Harry S. Truman (CVN 75). Harry S. Truman is underway conducting tailored shipboard test availability and final evaluation problem in preparation for future operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Scott Swofford/Released)