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  • The National Archives· 13 pages· 5 pages mention it
    • p. 6 …In response, the head of S4 (Air), James Carruthers, produced a detailed briefing for the Secretary of State for Air…
    • p. 9 …On the reorganization of MoD in 1964 a new Secretariat, S4 (Air), took over responsibility for UFO matters. UFO reports…
  • The National Archives· 2011-08· 15 pages· 5 pages mention it
    • p. 6 …In response, the head of S4 (Air), James Carruthers, produced a detailed briefing for the Secretary of State for Air…
    • p. 9 …On the reorganization of MoD in 1964 a new Secretariat, S4 (Air), took over responsibility for UFO matters. UFO reports…
  • The National Archives· 15 pages· 5 pages mention it
    • p. 6 …In response, the head of S4 (Air), James Carruthers, produced a detailed briefing for the Secretary of State for Air…
    • p. 12 …Papers from 1967-68 also contain details of field investigations of selected UFO reports carried out by S4 (Air) and…
  • The National Archives· 15 pages· 5 pages mention it
    • p. 6 …In response, the head of S4 (Air), James Carruthers, produced a detailed briefing for the Secretary of State for Air…
    • p. 12 …Papers from 1967-68 also contain details of field investigations of selected UFO reports carried out by S4 (Air) and…
  • · 345 pages· 3 pages mention it
    • p. 7 …51/S4 Pahute Mesa and Area 19 Groom Lake NEW MEXICO FACILITIES Los Alamos National Laboratories Kirtland Air Force Base…
    • p. 41 …future defense readiness, including projects at Nellis Air Force ease in area S4, v.mich apparently deal with reverse engineering…
  • Central Intelligence Agency· 1971· 19 pages· 1 page mentions it
    • p. 12 …28 S4-pte1nber 1965 Pfaj, Gen. Ll'Bailly, Dintctor of Information, formally requested tho Air Force Scientific Advisory Board to…

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