&amp;#8220;Project Blue Book was one of a series of systematic studies of unidentified flying objects (UFOs) conducted by the United States Air Force. Started in 1952, it was the second revival of such a study (the first two of its kind being Projects Sign and Grudge). A termination order was given for the study in December 1969, and all activity under its auspices ceased in January 1970.&amp;#8221;
I don&amp;#8217;t really understand how these guys were selling it, though. If it wasn&amp;#8217;t a scam, I mean.

http://www.bluebookarchive.org/