Originally posted by Cosmic Cowbell
[b]At the following link, you will find a recently declassified document (Nov. 3rd, 2005) detailing the rational given in 1980 by Eugene F. Yeates, then Chief, Office of Policy- NSA, regarding the withholding of several hundred documents pertaining to UFOs and the NSA. The document is heavily redacted but does speak to the volume of reports intercepted over a long time period and basically shows that even though Project Blue Book came to an end, and the Air Force ceased investigating UFOs, the sightings continued. Mention is made in the document of an actual increase in activity during one time period.
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For more background, see: