A firefighter with the 788th Civil Engineer Squadron Fire Department at Wright-Patterson Air Force Base, Ohio, plays the role of a “victim” who had fallen through ice Feb. 10, 2021, on the base’s Bass Lake as part of an ice-rescue training exercise. Cold water quickly brings on hypothermia. A victim in street clothes may not be able to assist in their own rescue after only 10 minutes in the water. (U.S. Air Force photo by R.J. Oriez)