PEARL HARBOR, Hawaii, March 18 (UPI) -- Taking the Admiral's barge to visit the watery grave of the Pennsylvania-class battleship USS Arizona is always emotional and moving. Of the 1,177 Arizona sailors killed that day, about 1,100 and their commander, Rear Adm. Isaac Kidd remain trapped as the ship was sent to the bottom on the morning of Dec. 7 1941, after Japan's surprise attack. One can only imagine the horror when Arizona's forward magazine exploded. Of the eight battleships sunk or