Senior Chief Petty Officer Charles Hofmann, an electrical technician in the Coast Guard Cutter Polar Star engineering department, directs Fireman Tabitha Hitchcock, also a member of the Polar Star’s engineering department, during a drill while underway in McMurdo Sound, Antarctica, Jan. 12, 2016. The drill simulated flooding in an engineering space. (U.S. Coast Guard photo by Petty Officer 2nd Class Grant DeVuyst)