Central Intelligence Agency Brochure
National Clandestine Service
The NCS serves as the clandestine arm of the CIA and the national authority for the coordination, de-confliction, and evaluation of clandestine human intelligence (HUMINT) operations across the Intelligence Community.
The NCS is the front-line source of clandestine intelligence on critical international developments ranging from terrorism and weapons proliferation to military and political issues. To gather this important intelligence, CIA operations officers live and work overseas to establish and maintain networks and personal relationships with foreign “assets” in the field. The NCS also manages foreign intelligence relationships and carries out special activities authorized by the President in support of US policy goals.