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Gray Barker's 1956 book, published by University Books, Inc. of New York, claims that leading flying saucer researchers who challenged the government's denial of extraterrestrial origins were silenced one by one after visits from three men in dark suits. Barker, a film booking agent in Clarksburg, West Virginia, began investigating flying saucers in 1952 after one allegedly landed near his home and he interviewed eyewitnesses. The FBI file, identifier 62-HQ-83894, consists of the book's dust jacket copy and was declassified under the FBI Automatic Declassification Guide issued May 24, 2007.