170920-N-NQ487-459 ATLANTIC OCEAN (Sept. 20, 2017) Damage Controlman 3rd Class Joshua E. Renner practices proper use of a naval firefighting thermal imager during a general quarters drill aboard aboard the aircraft carrier USS Harry S. Truman (CVN 75). Harry S. Truman is underway preparing for future operations. (U.S. Navy photo by Mass Communication Specialist Seaman Kaysee Lohmann/Released)