On January 24, 1961 ... a B-52, mainstay of the strategic nuclear bomber force, crashed near Goldsboro, North Carolina. The plane carried two 24-megaton nuclear weapons... [One bomb] fell into a field where it was found intact. According to Ralph Lapp, former head of the nuclear physics branch of the Office of Naval Research, five of the six interlocking safety mechanisms on the recovered bomb had been triggered by the fall. A single switch prevented the accidental explosion over North Carolina of a nuclear weapon more than a thousand times as powerful as the bomb that leveled Hiroshima.
—Lloyd J. Dumas, Lethal Arrogance