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Documents

June 23, 1963

National Intelligence Estimate NIE 4-63, 'Likelihood and Consequences of a Proliferation of Nuclear Weapons Systems'

This NIE comes to the general conclusions that “there will not be a widespread proliferation of nuclear weapons over the next 10 years” and discusses programs in various countries (Israel, China, Sweden, India, West Germany, Japan, etc.) This copy includes newly declassified references to the Israeli nuclear weapons program, including the conclusion that “the Israelis, unless deterred by outside pressure, will attempt to produce a nuclear weapon some time in the next several years.”

May 31, 1983

Meeting Minutes of the Politburo of the CC CPSU, Regarding Western Plans for Deployment of New Nuclear Weapons in Europe

Politburo discussion, presided over by Andropov, on how to respond to the Western decision to deploy new nuclear weapons in Europe.

April 19, 1971

Memorandum from Andropov to Ustinov, Regarding US Positions in the Anti-Ballistic Missile Negotiations

KGB chief Andropov analyzes the Anti-Ballistic Missile Treaty negotiations, particularly the US negotiating positions and the preferences of various Washington agencies.

December 8, 1986

Communist Party of the Soviet Union Central Committee Resolution, on the Expiration of the Soviet Moratorium on Nuclear Testing

Draft resolution with instructions for announcing the expiration of the unilateral Soviet moratorium on nuclear testing on 1 January 1987.

December 8, 1986

Proposal on the Expiration of the Unilaterial Soviet Moratorium on Nuclear Testing

Proposal to resume Soviet nuclear testing following the expiration of the USSR's unilateral moratorium on nuclear detonations on 1 January 1987. The US government continued nuclear testing throughout 1986 and did not join the Soviet moratorium. Proposes to announce the resumption of testing in December 1986 following the first American test explosion in 1987.

November 23, 1965

Glenn Seaborg, Chairman, Atomic Energy Commission, to National Security Adviser McGeorge, Bundy, enclosing summary of 'Nth Country Evaluation'

Summary of Union Carbide’s 1964 study on gas centrifuge technology’s effect on nuclear proliferation. The summary provides Union Carbide’s estimations for how long countries of varying industrial capability would take to develop a nuclear weapon, which was redacted in the original document.

March 4, 1964

S. A. Levin, L.R. Powers, and E. Von Halle, Union Carbide Corporation Nuclear Division, 'Nth Power Evaluation'

Union Carbide Nuclear Company updates their previous study on the ease with which other nations could secretly create nuclear weapon facilities using the gas centrifuge.

April 22, 1960

A.R. Luedecke, General Manager, Atomic Energy Commission, to Philip J. Farley, Department of State

The AEC agrees to initiate talks with Western European nations in the attempt to control nuclear proliferation through the classification of gas centrifuge technology.

April 9, 1960

Atomic Energy Commission, 'Gas Centrifuge Method of Isotope Separation,' AEC 610/15

Having read the Union Carbide and General Electric reports on gas centrifuges, and taking into account West Germany and The Netherlands’ unwillingness to classify their programs, the AEC looks into other courses of action, including collaboration with the other two nations and even declassifying their own program.

March 23, 1960

Philip J. Farley, special Assistant to the Secretary of State, to Algie A. Wells, Director, Division of International Affairs, Atomic Energy Commission, 'Control of and Cooperation in Gas Centrifuge Research and Development Program'

As West Germany and The Netherlands developed ultra-centrifuges without a classification policy, the AEC discuss ways to keep the technology under wraps without arousing suspicion from the other members of Euratom.

Pagination