Six of a total of 20 B-25 bombers fly over the National Museum of the United States Air Force in Dayton, Ohio commemorating the 70th anniversary of the Doolittle raid on Tokyo Wednesday, April 18, ... more 
Six of a total of 20 B-25 bombers fly over the National Museum of the United States Air Force in Dayton, Ohio commemorating the 70th anniversary of the Doolittle raid on Tokyo Wednesday, April 18, 2012. (AP Photo/Mark Duncan) less 
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Associated Press | Photo By Mark Duncan
Thu, Apr 19, 2012 8:07 AM EDT