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Federal Bureau of inuestigation United States Aepartinent of Justice San Francisco 2, California February 12, 1948 AIR: MAIL sous nn sonbatie dere, p40 aks Director, FBI - Attention: Assistant Director D. M. LADD Re: FLYING DISCS Security Matter - xX Dear Sir: Ian transmitting herewith for the information of the Bureau copies of an enclosure dated February 4, 1948 receivea from Lieutenant Colonel DONALD SPRINGER, A-2, United States Air Force, Hamilton Air Force Base, California. This enclosure is a confidential letter addressed to the Commanding Generals of the First, Second, Fourth, Tenth, Eleventh, ana Fourteenth Air Forces, Air Defense Command, from Head- quarters, Air Defense Command Mitchel Air Force Ease, New York, by comand of Lieutenant General STRATEMEYER. It concerns the investigation of flying discs by Air Force Personnel, Your attention is particularly called to Paragraph 2, which indicates that Sencerning the investigation of flying discs by Air Force Intelligence will be reported to She FBI office concerned. Your attention is further called to Paragraph 2-B » Which ings, i +t 411 b cordinated with the FBI Office concerned. sees 8's! that "investigations w © C00 a Inasmuch as these recent instructions of the Headquarters, Air Defense gonmand, Mitche12 Air » are contrary to the instructions con- 7, dated October 1, 1947, in which i+ ed with flying discs shoulda be ‘Ve action taken by Bureau agents, the offices, as this office, as:well es other interested bureau the handling orether there has been a change in Bureay policy with reference to As still in effect, ees or whether Bureay Bulletin No. 57 dated October 1, 1947 no investigati Very truly yours, ey KIMBALL, Sad. N\\) WY LS 1904