December 07, 1959
C. L. MARSHALL, DIRECTOR, DIVISION OF CLASSIFICATION, TO A. A. WELLS, DIRECTOR, DIVISION OF INTERNATIONAL AFFAIRS, 'COOPERATION IN THE FIELD OF GAS CENTRIFUGE'
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get citationUS Atomic Energy Commission classification director C. L. Marshall explains to international affairs director A. A. Wells that the design for the gas centrifuge must be classified for fear of providing an “unfriendly nation” a low-energy consuming method for “the separation of heavy isotopes…an important part of a [nuclear] weapons program.”"C. L. Marshall, Director, Division of Classification, to A. A. Wells, Director, Division of International Affairs, 'Cooperation in the Field of Gas Centrifuge'," December 07, 1959, History and Public Policy Program Digital Archive, Department of Energy mandatory declassification review release. Obtained and contributed by William Burr and included in NPIHP Research Update #7. http://digitalarchive.wilsoncenter.org/document/115302