Michael Bunker, son of 1st Lt. Anthony Bunker, 34th Bomb Squadron weapon systems officer, climbs inside of “Grumpy” a B-25D Mitchell Bomber from the Historic Flight Foundation at Ellsworth Air Force Base, S.D., April 20, 2012. Ellsworth hosted “Grumpy” as a static display for Airmen and citizens of Rapid City, S.D., during its return journey for the 70th anniversary of the Doolittle Raid. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)