CIA-UAP-002: Scientific Advisory Panel on Unidentified Flying Objects — The Robertson Panel Report, 1952–1953

Source file: CIA-UAP-002_Scientific-Advisory-Panel-on-Unidentified-Flying-Objects_Report_1952-1953.pdf Originating agency: Central Intelligence Agency, Office of Scientific Intelligence (O/SI) Document type: Panel report, meeting minutes, correspondence, and background memoranda Classification: SECRET (Approved for Release; declassified under NND 917075) Dates covered: October 1952 – April 1953 Panel convened: January 14–17, 1953 Page count: 42 (all read) VIRIN: 260508-O-D0360-1079 PURSUE Release: 3

Summary

This 42-page file constitutes the full documentary record of the CIA's Scientific Advisory Panel on Unidentified Flying Objects — universally known as the Robertson Panel after its chairman, Dr. H. P. Robertson of the California Institute of Technology. The file assembles:

• The formal two-page "Report of the Scientific Panel on Unidentified Flying Objects," signed 17 January 1953 by all five panel members.
• The 24-page "Report of Meetings of Scientific Advisory Panel on Unidentified Flying Objects Convened by Office of Scientific Intelligence, CIA, January 14–18, 1953," authored by associate member F. C. Durant III.
• Distribution letters dated 12–13 March 1953 from IAC Secretary Richard D. Drain to C. D. Jackson (Special Assistant to the President), the Secretary of Defense, the Federal Civil Defense Administration, the National Security Resources Board, and others.
• A letter dated 18 April 1953 from FCDA Administrator Val Peterson acknowledging receipt of the panel report.
• An IAC paper (IAC-D-67, 18 February 1953) announcing the CIA's conclusion that no National Security Council Intelligence Directive on the subject was warranted.
• Background memoranda from October–November 1952 on "Flying Saucers" (from CIA's O/SI to the Deputy Director for Intelligence) and "Radar Phantoms" (from Brig. Gen. Alfred R. Maxwell, USAF).
• Draft correspondence proposing expanded scientific research.
• Two Access Restricted (pink) withdrawal notices (documents 400165 dated 16 Feb 53 and 400169 dated 17 Jan 53) indicating withheld materials from the same file.

Research Article

Convening the panel: origin and mandate

By late 1952, the "flying saucer" phenomenon had become a genuine administrative and intelligence problem for the U.S. government. Since 1947, approximately 1,500 official reports of sightings had been received by the Air Force; roughly 20 percent remained unexplained after analysis. The summer of 1952 saw an extraordinary spike in reports, including the famous Washington, D.C., radar contacts of July 1952. The Air Technical Intelligence Center (ATIC) — home to Project GRUDGE and Project BLUE BOOK — was handling hundreds of reports per year (1,900 in 1952 alone) and struggling to keep pace.

In October 1952, a CIA Office of Scientific Intelligence memorandum to the Deputy Director for Intelligence concluded that the situation had "possible implications for our national security with respect to the vulnerability of the U.S. to air attack." OSI's concern was not that flying saucers were Soviet craft — its review of existing information "does not lead to the conclusion that the saucers are USSR created or controlled" — but that it could not adequately assess Soviet capabilities to exploit the phenomenon until the nature of the phenomenon itself was better understood. The memo recommended expanded scientific research.

The Intelligence Advisory Committee, acting on a 4 December 1952 decision, directed that a panel of scientific consultants be convened. The panel was constituted by CIA Director General Walter B. Smith and met for four days, January 14–17, 1953.

Panel membership and evidence reviewed

The Robertson Panel comprised five principal scientists, each with relevant expertise:

• Dr. H. P. Robertson (Chairman) — Physics and weapons systems, California Institute of Technology
• Dr. Luis W. Alvarez — Physics and radar, University of California (later a Nobel laureate)
• Dr. Lloyd V. Berkner — Geophysics, Associated Universities, Inc.
• Dr. Samuel A. Goudsmit — Atomic structure and statistical problems, Brookhaven National Laboratories
• Dr. Thornton Page — Astronomy and astrophysics, Johns Hopkins University

Associate members included Dr. J. Allen Hynek (Astronomy, Ohio State University) and Mr. Frederick C. Durant III (Rockets and guided missiles, Arthur D. Little, Inc.), who authored the detailed meeting report.

The panel was presented with an extensive body of evidence (Tab B to the meeting report), including 75 case histories of 1951–1952 sightings selected by ATIC as the best documented; status and progress reports of Project GRUDGE and Project BLUE BOOK; reports from Project STORK (Battelle Memorial Institute); summaries of sightings at Holloman AFB, New Mexico; a report on "Green Fireball" phenomena (Project TWINKLE) from the Cambridge USAF Research Center; and — most consequentially — Kodachrome motion picture films of sightings at Tremonton, Utah (2 July 1952) and Great Falls, Montana (August 1950), which had received extensive analysis by the U.S. Navy Photo Interpretation Laboratory.

The panel's formal conclusions

The two-page formal panel report, dated 17 January 1953 and signed by all five members, is terse and unambiguous. It reaches two sets of conclusions.

First, the panel concluded "that the evidence presented on Unidentified Flying Objects shows no indication that these phenomena constitute a direct physical threat to national security." It found "no residuum of cases which indicates phenomena which are attributable to foreign artifacts capable of hostile acts, and that there is no evidence that the phenomena indicate a need for the revision of current scientific concepts."

Second, the panel "further concludes... that the continued emphasis on the reporting of these phenomena does, in these parlous times, result in a threat to the orderly functioning of the protective organs of the body politic." The panel cited "the clogging of channels of communication by irrelevant reports, the danger of being led by continued false alarms to ignore real indications of hostile action, and the cultivation of a morbid national psychology in which skillful hostile propaganda could induce hysterical behavior and harmful distrust of duly constituted authority."

The panel's two recommendations were: (a) that national security agencies "take immediate steps to strip the Unidentified Flying Objects of the special status they have been given and the aura of mystery they have unfortunately acquired"; and (b) that agencies "institute policies on intelligence, training, and public education designed to prepare the material defenses and the morale of the country to recognize most promptly and to react most effectively to true indications of hostile intent or action."

The Durant report: detailed findings

The 24-page Durant meeting report (signed "F. M. Durant III") provides substantially richer detail than the two-page formal report. Among its key findings:

On the Tremonton, Utah, sighting: The panel gave significant attention to USN Photo Interpretation Laboratory (PIL) analysis of the Tremonton film (about 1,600 Kodachrome frames). The PIL had invested approximately 1,000 man-hours concluding the objects were "self-luminous" and not birds, balloons, or aircraft. The panel rejected this conclusion. Members offered multiple explanations for why the PIL findings were flawed — including that semi-spherical objects can produce reflections through 60 degrees of arc without blinking, that the apparent motions and brightnesses "strongly suggested birds, particularly after the Panel viewed a short film showing high reflectivity of seagulls in bright sunlight," and that the PIL's methodology for measuring light intensity was technically deficient. The Great Falls, Montana, objects were believed to have probably been aircraft.

On extraterrestrial origins: The Durant report notes that "none of the members of the Panel were loath to accept that this earth might be visited by extraterrestrial intelligent beings of some sort, some day," but that they "did not find any evidence that related the objects sighted to space travelers." J. Dewey Fournet Jr. (the BLUE BOOK project officer) presented his case that eliminating all known explanations left extraterrestrial as "the only one remaining in many cases"; the panel could not accept his raw, unevaluated reports.

On the Air Force reporting system: The panel was critical of the Air Force for having "instituted a fine channel for receiving reports of nearly anything anyone sees in the sky and fails to understand," resulting in "mass receipt of low-grade reports which tend to overload channels of communication." The panel concluded this was "possibly dangerous in having a military service foster public concern in 'nocturnal meandering lights.'"

On potential dangers: The panel identified three related dangers even in the absence of a direct threat: (a) misidentification of actual enemy artifacts by defense personnel; (b) overloading of emergency reporting channels with "false information" (the "noise to signal ratio" problem cited by Berkner); and (c) "subjectivity of public to mass hysteria and greater vulnerability to possible enemy psychological warfare."

On the educational/debunking program: The Durant report details an expansive vision for a training-and-debunking program to be run as a joint effort across agencies, lasting a minimum of 18 months to 2 years. It would use mass media — television, motion pictures, popular articles — to demystify the subject. Specific resources mentioned included the U.S. Navy Special Devices Center (Sands Point, L.I.), the Jam Handy Co. (which made World War II training films), and Walt Disney, Inc. The panel suggested psychologists familiar with mass psychology — mentioning Dr. Hadley Cantril of Princeton (author of a study of the Orson Welles "War of the Worlds" panic) — to advise on the program.

On unofficial civilian groups: The panel "took cognizance of the existence of such groups as the 'Civilian Flying Saucer Investigators' (Los Angeles) and the 'Aerial Phenomena Research Organization (Wisconsin).'" It concluded such organizations "should be watched because of their potentially great influence on mass thinking if widespread sightings should occur. The apparent irresponsibility and the possible use of such groups for subversive purposes should be kept in mind."

On cosmic-ray anomalies: Two cosmic-ray correlation cases were examined: a Palomar Mountain case (October 1949) where counters went "off scale for a few seconds" while a "V" of flying saucers was visually observed, and observations by a "Los Alamos Bird Watchers Association" (August 1950 to January 1951). Dr. Alvarez determined both were attributable to instrumental effects; the panel rejected the implication that radioactive effects were correlated with UFOs.

Distribution and aftermath

The formal panel report was transmitted on 12–13 March 1953 by IAC Secretary Richard D. Drain to a wide audience: C. D. Jackson (Special Assistant to the President), the Secretary of Defense, the Federal Civil Defense Administration, the National Security Resources Board, and the Psychological Strategy Board members (George Morgan and Tracey Barnes). The CIA's own cover letter noted the agency "does not consider problems arising from sightings of 'flying saucers' primarily its concern," but offered to assist.

The IAC concluded, based on the panel's work, that no National Security Council Intelligence Directive on the subject was warranted (IAC-D-67, 18 February 1953). Federal Civil Defense Administrator Val Peterson responded on 18 April 1953, noting the panel's recommendations were "of considerable interest in connection with the civil defense program" and requesting a follow-on conference.

Significance

The Robertson Panel is one of the most consequential government documents in the history of UFO/UAP policy. Its debunking recommendation shaped U.S. government posture toward the subject for decades — and the surveillance recommendation regarding civilian UFO groups has been cited by researchers as indicative of a broader strategy to suppress or monitor public interest in the phenomenon rather than to investigate it seriously. The detailed Durant report, in particular, reveals the internal deliberations of five leading scientists confronting actual photographic and case-history evidence and concluding — with varying degrees of nuance — that no extraordinary explanation was warranted, while simultaneously recommending extraordinary public-relations measures to reduce the political and communications burden of the phenomenon. The panel's legacy remains contested: it is cited both as a responsible scientific assessment and as the origin point of institutional UFO secrecy in the United States.

Key People

Locations

Incidents

Notable Quotes

"That the evidence presented on Unidentified Flying Objects shows no indication that these phenomena constitute a direct physical threat to national security." — Report of the Scientific Panel, page 1 (Tab A, 17 January 1953)

"We firmly believe that there is no residuum of cases which indicates phenomena which are attributable to foreign artifacts capable of hostile acts, and that there is no evidence that the phenomena indicate a need for the revision of current scientific concepts." — Report of the Scientific Panel, page 1

"That the continued emphasis on the reporting of these phenomena does, in these parlous times, result in a threat to the orderly functioning of the protective organs of the body politic." — Report of the Scientific Panel, page 1

"...the cultivation of a morbid national psychology in which skillful hostile propaganda could induce hysterical behavior and harmful distrust of duly constituted authority." — Report of the Scientific Panel, page 1-2

"That the national security agencies take immediate steps to strip the Unidentified Flying Objects of the special status they have been given and the aura of mystery they have unfortunately acquired." — Report of the Scientific Panel, page 2 (recommendation 4a)

"The Panel took cognizance of the existence of such groups as the 'Civilian Flying Saucer Investigators' (Los Angeles) and the 'Aerial Phenomena Research Organization (Wisconsin).' It was believed that such organizations should be watched because of their potentially great influence on mass thinking if widespread sightings should occur. The apparent irresponsibility and the possible use of such groups for subversive purposes should be kept in mind." — Durant Report, page 23

"The result is the mass receipt of low-grade reports which tend to overload channels of communication with material quite irrelevant to hostile objects that might some day appear." — Durant Report, page 9

"None of the members of the Panel were loath to accept that this earth might be visited by extraterrestrial intelligent beings of some sort, some day. What they did not find was any evidence that related the objects sighted to space travelers." — Durant Report, page 10