Major Donald Keyhoe was convinced by the early 1950s that Flying Saucers and UFOs had an extraterrestrial origin, and spoke publicly about his beliefs. Want to read Major Keyhoe's The Flying Saucers Are Real book for free? You can now download it (it's in the public domain) on The Black Vault at: https://www.theblackvault.com/casefiles/the-flying-saucers-are-real-by-donald-e-keyhoe-fawcett-publications-1950-public-domain/ | The Black Vault