From March 1952, Blue Book”was the name for Air Force research into the nature of UFOs. Suspected by some of being a cover-up and disinformation campaign from the start.
Jacques Vallee writes:
I remember visiting the Wright-Patterson Air Force Base. In the building lobby a MIG interceptor was hanging from the ceiling, hammer and sickle on its tail. The general impression was not one of sloppy work and casual distraction. Yet the procedures of Blue Book, where files were lost and cases mislabeled, were so grossly bungled that disciplinary action would have been warranted in any other context. Even classified files got ‘lost’
- wiki: project-bluebook