Modern UFO era (2)

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Use of “UFO” instead of “flying saucer” was first suggested in 1952 by Capt. Edward J. Ruppelt, the first director of Project Blue Book, who felt that “flying saucer” did not reflect the diversity of the sightings. Ruppelt suggested that “UFO” should be pronounced as a word — “you-foe”. However it is generally pronounced by forming each letter: “U.F.O.” His term was quickly adopted by the Air Force, which also briefly used “UFOB” circa 1954. (See next paragraph.) Ruppelt recounted his experiences with Project Blue Book in his memoir, The Report on Unidentified Flying Objects (1956), also the first book to use the term.[14] Air Force Regulation 200-2, issued in 1954, defined an Unidentified Flying Object (UFOB) as “any airborne object which by performance, aerodynamic characteristics, or unusual features, does not conform to any presently known aircraft or missile type, or which cannot be positively identified as a familiar object.” The regulation also said UFOBs were to be investigated as a “possible threat to the security of the United States” and “to determine technical aspects involved.” Furthermore, Air Force personnel were directed not to discuss unexplained cases with the press.[15] In Canada, the Department of National Defence has dealt with reports, sightings and investigations of UFOs across Canada. In addition to conducting investigations into crop circles in Duhamel, Alberta, it still identifies the Falcon Lake incident in Manitoba and the Shag Harbour incident in Nova Scotia as "unsolved".[16]