** FILE ** Crewmen aboard the USS Yorktown battle fire after the carrier was hit by Japanese bombs, during the Battle of Midway, in a June 4, 1942, file photo. Later the vessel had to be abandoned and was sunk by a Japanese submarine torpedo hit. The National World War II Museum in New Orleans continues to press its emphasis on the war in the Pacific, with a new exhibit opening Saturday, June 2, on the Battle of Midway. (AP Photo)