January 21, 1979
US INTERAGENCY INTELLIGENCE MEMORANDUM, 'THE 22 SEPTEMBER 1979 EVENT'
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get citationForwarded to Ralph Earle, Director of US Arms Control and Disarmament Agency. The Interagency Intelligence Memorandum on the 22 September 1979 explosion, or Vela Incident, concludes that it was a nuclear explosion."US Interagency Intelligence Memorandum, 'The 22 September 1979 Event'," January 21, 1979, History and Public Policy Program Digital Archive, William Burr and Avner Cohen, eds., National Security Archive Electronic Briefing Book #570 (December 6, 2016). Contributed by Sasha Polakow-Suransky. https://digitalarchive.wilsoncenter.org/document/116666