Cold War Nuclear Assessment Re-Released with Fewer Redactions After Five-Year Review

A Cold War-era intelligence document examining the global spread of nuclear weapons has been re-released following a Mandatory Declassification Review (MDR) request filed by The Black Vault. The document, National Intelligence Estimate 4-63, “Likelihood and Consequences of a Proliferation of Nuclear Weapons Systems,” was originally produced in June 1963 and coordinated across multiple U.S.…