U.S. Coast Guard Petty Officer 2nd Class Joshua Vaughn, an aviation survival technician assigned to Coast Guard Air Station Barbers Point in Kapolei, Hawaii, gives a hand signal to a Barbers Point MH-65 Dolphin helicopter crew during training at Bellows Air Force Base in Waimanalo, Hawaii, April 29, 2026. Coast Guard aviation survival technicians, often referred to as "rescue swimmers", are emergency medical technicians who deploy from helicopters to rescue survivors during maritime emergencies. (U.S. Coast Guard photo by Petty Officer 2nd Class Tyler Robertson)