68th Reunion of Doolittle Raiders

B-25J "Miss Mitchell" Mitchell bomber takes off from the National Museum of the U.S. Air Force at Wright-Patterson Air Force Base, Ohio. Pilots Alan Miller, James Gilmore and Mark Erickson will join a 17-ship formation of the bombers to fly over the museum prior to the Doolittle Raiders Memorial Service in the museum's Memorial Park on April 18, 2010. This is one of the largest gatherings of the Mitchell Bombers since the historic raid over Tokyo, Japan during World War II. (U.S. Air Force photo/Lance Cheung)

68th Reunion of Doolittle Raiders

Heatwave from the ground creates a mirage effect on the view of 17 B-25 Mitchell bombers at the National Museum of the U.S. Air Force at Wright-Patterson Air Force Base, Ohio are being ready to take off for a formation flyover prior to the Doolittle Raiders Memorial Service in the museum's Memorial Park on April 18, 2010. This is one of the largest gatherings of the Mitchell Bombers since the historic raid over Tokyo, Japan during World War II. (U.S. Air Force photo/Lance Cheung)

Doolittle Raiders 68th reunion

Robert Adair (left) and John Luchin carefully replace the display panels of the Doolittle Raiders' case of goblets after being used in a ceremony in Fairborn, Ohio, April 6, 2010. Mr. Adair is a conservator and Mr. Luchin is a collections registrar with the National Museum of the U.S. Air Force who keep, care and transport the goblets for the Raiders. (U.S. Air Force photo/Lance Cheung)

Doolittle Raiders 68th reunion

James Doolittle's goblet (upper left) and the goblets of other Doolittle Raiders who have passed are displayed at the Goblet Ceremony in Fairborn, Ohio, April 16, 2010. The ceremony honors all who participated in the Doolittle Raid on Tokyo during World War II. The downturned goblets represent aircrew members who have not survived. During the ceremony the name of every person is read and an attending Doolittle Raider responds to indicate the spirit of those who have passed are present. The set of goblets is now maintained by the National Museum of the U.S. Air Force at Wright-Patterson Air Force Base, Ohio. (U.S. Air Force photo/Lance Cheung)

Doolittle Raiders 68th reunion

C.V. Glines (far left), Doolittle Raiders historian and author, moderates a question and answer session between news media and Doolittle Raiders April 16, 2010, at the National Museum of the U.S. Air Force at Wright-Patterson Air Force Base, Ohio. Answering questions were (left to right) Lt. Col. Richard E. Cole, Lt. Col. Robert L. Hite, Maj. Thomas Griffin and Master Sgt. David J. Thatcher. (U.S. Air Force photo/Lance Cheung)

Doolittle Raiders Memorial Flyover

B-25 Mitchell bombers at the National Museum of the U.S. Air Force at Wright-Patterson Air Force Base, Ohio are being prepared for a formation flyover prior to the Doolittle Raiders Memorial Service in the museum's Memorial Park on April 18, 2010. This is one of the largest gatherings of the Mitchell Bombers since the historic raid over Tokyo, Japan during World War II. (U.S. Air Force photo/Lance Cheung)