Lt, Col. Richard Cole (right) addresses the visitors attending the memorial service during the 68th reunion of the Doolittle Raiders. This event is being held at the National Museum of the U.S. Air Force at Wright-Patterson Air Force Base, Ohio on April 18, 2010. Three of the remaining eight surviving Doolittle Raiders attended this service. Thousands of people came to the museum to meet the Raiders in attendance. (U.S. Air Force photo/Lance Cheung)