Retired US Air Force (USAF) Brigadier General (BGEN) Paul W. Tibbets talks about his experience flying the B-29 Superfortress, the Enola Gay, that delivered the first atomic bomb during World War II. BGEN Tibbets spoke to a gathering prior to autographing copies of his book "The Return of the Enola Gay," at a book-signing event in the Pentagon Concourse