National Security Agency (NSA) Collection

The Maya Astronomical Computer, by Charles H. Lacombe and [REDACTED], Winter 1977

This paper presents evidence of a visual astronomical computer which would have enabled Maya astronomer-priests to accomplish complex astronomical calculations…

October 1, 2021

NSA/CSS Strategy, Published June 2010

Background From the document: "The digital revolution has clearly placed the National Security Agency/Central Security Service (NSA /CSS) in a…

May 1, 2021

National Security Agency (NSA) ADMS “Document Management System” Printouts

Background In the beginning of 2016, I requested under the Freedom of Information Act (FOIA) and printout of documents listed…

December 21, 2020

Cryptolog (NSA Newsletter), October 1981 Edition

Background Cryptolog was created in 1974 and was, according to the editor, “a new vehicle for the interchange of ideas…

December 19, 2020

NSA COMINT REPORT: Capital Projects Planned in India, August 31, 1972

Background The following document was first received by the National Security Archive many years ago, but it is unclear when…

November 26, 2020