Ruppelt, Hynek, and others presented the best evidence, including movie footage, that had been collected by Blue Book. After spending 12 hours reviewing 6 years of data, the Robertson Panel concluded that most UFO reports had prosaic explanations and that all could be explained with further investigation, which they deemed not worth the effort.
In their final report, they stressed that low-grade, unverifiable UFO reports were overloading intelligence channels, with the risk of missing a genuine conventional threat to the U.S. Therefore, they recommended the Air Force de-emphasize the subject of UFOs and embark on a debunking campaign to lessen public interest.
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Ruppelt later came to embrace the Blue Book perspective that there was nothing extraordinary about UFOs; he even labeled the subject a "Space Age Myth."
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According to Secretary Harold Brown of the Air Force, Blue Book consisted of three steps: investigation, analysis, and the distribution of information gathered to interested parties.
[25] After Brown gave permission, the press were invited into the hearing.
[26] By the time of the hearing, Blue Book had identified and explained 95% of the reported UFO sightings. None of these were extraterrestrial or a threat to national security.
[27] Brown himself proclaimed, "I know of no one of scientific standing or executive standing with a detailed knowledge of this, in our organization who believes that they came from extraterrestrial sources."
[27] J. Allen Hynek, a science consultant to Blue Book, suggested in an unedited statement that a "civilian panel of physical and social scientists" be formed "for the express purpose of determining whether a major problem really exist" in regards to UFOs.
[28] Hynek remarked that he has "not seen any evidence to confirm" extraterrestrials, "nor do I know any competent scientist who has, or who believes that any kind of extraterrestrial intelligence is involved."
[29]
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In the end, the Condon Committee suggested that there was nothing extraordinary about UFOs, and while it left a minority of cases unexplained, the report also argued that further research would not be likely to yield significant results.