The date is Dec. 24, 1944, in the midst of World War II, and while most Americans are at home preparing for a Christmas with their families, 1st Lt. Cuno Vernal Becker, an armament officer with the 836th Bomb Squadron, 487th Bomb Group, is boarding his B-17 Flying Fortress, about to take part in mission number 760 -- the 8th Air Force's largest