Capt. Matthew Walker, commanding officer of Coast Guard Cutter Polar Star, presents Fireman Lisa Fioretti and Petty Officer 3rd Class Jose Tamayo, a machinery technician, with Coast Guard Commandant's Letters of Commendation at quarters while ship is underway in McMurdo Sound near Antarctica, Jan. 22, 2014. Fioretti and Tamayo distinguished themselves while responding to a casualty to a broken shaft seal in the ship's motor room. (U.S. Coast Guard photo by Petty Officer 1st Class George Degener)