In this photo by the U.S. Coast Guard, a boat crew from Coast Guard Marine Safety and Security Team Boston escorts the Pre-Commissioning Unit (PCU) New York as the ship sails into New York Harbor Monday, Nov. 2, 2009. The amphibious transport dock (LPD 21), laid with seven and a half tons of steel from the World Trade Center in its bow, will be comissioned in a ceremony at the Intrepid Air, Sea and Space Museum Nov. 7th. It is the sixth Navy ship to bear the name New York. The…