The U.S. Coast Guard’s sole heavy icebreaker, Polar Star, recently broke the nation’s 40-year winter absence from icy waters above the Arctic Circle while on a 12-week deployment to the Bering Strait regio n. Back at the dock in Juneau, Capt. Bill Woityra, commander of the Polar Star, while speaking at last week’s University of Alaska Fairbanks-Northwest Campus’s “Strait Science” series, proclaimed the mission a success. He describes the three main objectives of their deployment. “The first area