Kontra-intelijen

Kontraintelijen/Counterintelligence (Kontraintel/Counterintel) adalah operasi penggalian informasi secara khusus bersifat strategis dan taktis yang dilakukan untuk menggagalkan rencana musuh.Executive Order 12333. (1981, December 4). United States Intelligence Activities, Section 3.4(a). EO provisions found in 46 FR 59941, 3 CFR, 1981 Comp., p.1

 Bacaan tambahan 
 Johnson, William R. Thwarting Enemies at Home and Abroad: How to Be a Counterintelligence Officer (2009)
 Bibi van Ginkel,Towards the intelligent use of intelligence: Quis Custodiet ipsos Custodes? (International Centre for Counter-Terrorism - The Hague, 2014) 


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