Title: Department of State, Cable, London to Secretary of State, November 22, 1971, Secret, NARA.
Creator: Department of State
Date in Source: November 22, 1971
Subject: Great Britain - British government - Intelligence facilities - Acoustic intelligence - Sound Surveillance System - SOSUS - RAF Brawdy - Submarine surveillance - Hydrophones - Project BACKSCRATCH - Negotiations - Agreement signed
Format: 1 p.