The US government agency tasked with gathering intelligence for the country's government and military leaders, and preventing foreign adversaries from gaining access to classified national securi [..]

New Zealand national intelligence service, established in 1977.

Research Unit for the GCHQ.

The National Counterterrorism Center (NCTC) is a United States government organization responsible for national and international counterterrorism efforts. Part of the Office of the Director of Nation [..]

SECRET

codes that further control access to the document. These are usually codewords, the meaning of which is unknown in some cases. There may be around 100-300 SCI compartments, grouped into about two doze [..]

This is a "controlled access signals intelligence program" created under presidential authorization after the attacks of September 11th. It includes information related to the President' [..]

This control system is reserved for finalized intelligence products. ENDSEAL information is always classified as Special Intelligence (SI). Documents with this classification are intended for dissemin [..]

This control system is reserved for the products of overhead collection systems, including satellites and reconnaissance aircraft.

This control system is used for compartments protecting new sources and methdos during research, development and acquisiton done by the National Reconnaissance Office (NRO).