National Security Agency - The Black Vault
National Security Agency - The Black Vault
National Security Agency - The Black Vault
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1970s<br />
1970s<br />
Document C: Established in 1971, the USSID System provided timely procedural<br />
guidelines for practitioners throughout the SIGINT system.<br />
Document D: <strong>National</strong> <strong>Security</strong> Council Memorandum to the <strong>National</strong> <strong>Security</strong> Advisor suggesting<br />
mitigating measures against the Soviet microwave collection of critical U.S. government communications.<br />
66 60 Years of Defending Our Nation <strong>National</strong> <strong>Security</strong> <strong>Agency</strong> <strong>National</strong> <strong>Security</strong> <strong>Agency</strong> 60 Years of Defending Our Nation 67
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