U.S. sailors conduct a rescue exercise in a room filled with simulated smoke during a damage control competition aboard the aircraft carrier USS Nimitz (CVN 68) May 2, 2013, in the Pacific Ocean. The Nimitz and the embarked Carrier Air Wing (CVW) 11 were on a Western Pacific deployment. (U.S. Navy photo by Mass Communication Specialist Seaman Derek A. Harkins/Released)