Editing Project Blue Book (section)

===Captain Gregory era===
Captain George T. Gregory took over as Blue Book's director in 1956. Clark writes that Gregory led Blue Book "in an even firmer anti-UFO direction than the apathetic Hardin."<ref name=clark468 /> The 4602nd was dissolved, and the 1066th Air Intelligence Service Squadron was charged with UFO investigations.

In fact, there was actually little or no investigation of UFO reports; a revised AFR 200-2 issued during Gregory's tenure emphasized that unexplained UFO reports must be reduced to a minimum.

One way that Gregory reduced the number of unexplained UFOs was by simple reclassification. "Possible cases" became "probable", and "probable" cases were upgraded to certainties. By this logic, a ''possible'' [[comet]] became a ''probable'' comet, while a probable comet was flatly declared to have been a misidentified comet. Similarly, if a witness reported an observation of an unusual balloon - ''like'' object, Blue Book usually classified it as a balloon, with no research and qualification. These procedures became standard for most of Blue Book's later investigations; see Hynek's comments below.