The United States Coast Guard icebreaker 'Westward', right, attempts to tow the Motor Vessel Magga Dan off an Ice Pinnacle, at McMurdo Sound, Antarctica, on Jan. 21, 1968. The Magga Dan was carrying 23 American and Italian tourists. (AP Photo)
The United States Coast Guard icebreaker 'Westward', right, attempts to tow the Motor Vessel Magga Dan off an Ice Pinnacle, at McMurdo Sound, Antarctica, on Jan. 21, 1968. The Magga Dan was carrying 23 American and Italian tourists. (AP Photo)