NSA
HISTORY TODAY 23 APRIL 2019
Daily Enterprise - (U) Genevieve Grotjan Feinstein (Part Two) - HISTO...UNCLASSIFIED//FOR-OFHEAEDSEONEYDAILY ENTERPRISE @@(U) Genevieve Grotjan Feinstein (Part Two) - HISTORY TODAY: April23,2019FROM: (U) Center for Cryptologic History (CCH)Run Date(s): 04/23/2019(U) On February 1, 1943, the Army Signal Security Agency at ArlingtonHall Station began its effort to study and exploit a particular set ofRussian messages, thought at the time to be diplomaticcommunications. At that time, Arlington Hall...
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Internal Periodicals & Publications
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Internal Periodicals & Publications
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