Project Blue Book! All UFO Files Declassified SUBSCRIBE & JOIN THE SCARY SIDE OF YOUTUBE Follow us- .\r
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In a bonanza for UFO researchers, the complete U.S. Air Force files from Project Blue Book — the 28-year effort by the Air Force to investigate every reported .\r
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Thousands of Air Force files on UFO sightings and investigations are now on the internet. UFO enthusiast John Greenewald had been filing freedom of .\r
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An investigative .