The classic work of the early years of UFOlogy, The Flying Saucers Are Real (1950) is Major Donald E. Keyhoe's examination of the "flying saucer" phenomenon just then taking shape. Was it all mass hysteria? Or was the United States government throwing up a smokescreen with its investigation? What of the witnesses, and the deaths of people like Air Force pilot Captain Mantell? Major Keyhoe investigated all of these questions. His inescapable conclusion? The flying saucers ARE REAL.