Just declassified and released after 8 years from FOIA request: NSA TEMPEST 01-02 NONSTOP Evaluation Standard (Oct 2002): <http://cryptome.org/2014/05/nsa-tempest-01-02-oct-02.pdf>http://cryptome.org/2014/05/nsa-tempest-01-02-oct-02.pdf (3.2MB) Compare NONSTOP Techniques from 1975: <http://cryptome.org/nacsem-5112.htm>http://cryptome.org/nacsem-5112.htm Both heavily redacted but comparison may fill in missing. The TEMPEST researchers at Cambridge may have full documents. What say? Our compilation: http://cryptome.org/nsa-tempest.htm