U.S. Navy Damage Controlman 1st Class Chris Sanders, right, provides first aid training to sailors during a medical emergency drill aboard the aircraft carrier USS Ronald Reagan (CVN 76) Sept. 19, 2013, in San Diego. The ship was moored and home-ported at Naval Base Coronado. (U.S. Navy photo by Mass Communication Specialist 2nd Class Richard L.J. Gourley/Released)