NEW YORK - Petty Officer 2nd Class William Monroe, a buoy deck supervisor at Coast Guard Aids to Navigation Team Saugerties, gives hand signals to the crane operator during an aid to navigation evolution along the Hudson River, N.Y., Dec. 12, 2012. The crew replaced some of the aids with the seasonal hulls that can withstand ice. U.S. Coast Guard photo by Petty Officer 2nd Class Jetta H. Disco.