Wilbert Smith Archives Files Box 1136 21 1136-21-p037

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12. Instead--as NSA's foreign intelligence targets presumably know we1l--NSAMmUStTfocusmits interception» activitiesson»those™particular communica which yield) the highest proportion of What foreign government officials do not know, however, is which of the vast number of radio communications NSA attemp: to intercept, which are intercepted, and, of those that are intercepted, which yield to NSA processing methods and techniques. It is the protection of this Critical info tation that is at the...