Master Chief Petty Officer Steven Cantrell, Master Chief Petty Officer of the Coast Guard, listens intently to Chief Petty Officer Mike West, a Coast Guard dive instructor at the Naval Diving and Salvage Training Center, who explains how the school runs its program with Coast Guardsmen, Aug. 25, 2014. Cantrell visited the dive school to help encourage the Coast Guard's newest divers as well as pin on their dive insignias. (U.S. Coast Guard photo by Petty Officer 3rd Class Jonathan Lally)