Master Chief Petty Officer Gregory Zerfass, Petty Officer 1st Class Stephen Braun and Petty Officer 1st Class Allen Birt, boatswain's mates assigned to the Coast Guard Cutter Polar Star, hold a Seattle Seahwak's 12th man flag at McMurdo Station, Antarctica, Jan. 18, 2015. Polar Star's crew is in Antarctica supporting Operation Deep Freeze, part of the U.S. Antarctic Program, managed by the National Science Foundation. (U.S. Coast Guard photo by Petty Officer 1st Class George Degener)