Petty Officer 2nd Class Ronald Schnackenberg, a damage controlman aboard the Coast Guard Cutter Morgenthau, responds to a simulated emergency during basic engineering casualty control exercises in the cutter's engine room while underway in the Pacific Ocean May 3, 2014. Schnackenberg participated in the exercise as part of his throttleman qualification, an engineering position that oversees the cutter's propulsion. (U.S. Coast Guard photo by Petty Officer 3rd Class Grant DeVuyst)