Title: National Security Agency (NSA), Cable, SUSLO CHELT to NSACSS, March 28, 1977, Top Secret/COMINT Channels, NSA FOIA.
Creator: National Security Agency (NSA)
Date in Source: March 28, 1977
Subject: Great Britain - Jimmy Carter - White House meeting with Prime Minister Callahan - British intelligence services - GCHQ - SIGINT - UKUSA Treaty
Format: 1 p.
Note: Top Secret