NAVAL INTELLIGENCE DIVISION• 38524 hours a day to supervise the work of the Port Units run by individ-
ual Special Branches and maintains a link with Customs and Excise
and the Immigration Service. As well as dealing with terrorist and
intelligence targets, the NPO distributes warnings on criminals and
child abductions.NATIONAL SECURITY AGENCY (NSA).The National Security
Agency, the signals intelligence organization of theUnited States,
was created in 1952. NSA and its predecessors, the Army Security
Agency from February 1943 and then the Armed Forces Security
Agency from May 1949, have enjoyed the closest relationship with
their British counterpart,GCHQ. The cooperation between the two
sigint organizations was formalized in theBRUSAand UKUSA ac-
cords, which allow for the exchange of permanent liaison personnel
and participation in joint projects such asechelonandvenona.
Since World War II NSA has maintained bases in the United King-
dom atChicksands Priory; RAF Menwith Hill; RAF Alconbury;
RAF Croughton; RAF Mildenhall; RAF Sculthorpe; Edzell and Kirk-
newton, Scotland; and Brawdy, Wales.
NAVAL INTELLIGENCE DIVISION (NID). The intelligence
branch of the Royal Navy, headed at the Admiralty by thedirector
of naval intelligence, NID is the oldest component of British Intelli-
gence. NID was subdivided into numbered sections, each with spe-
cific responsibilities:
- NID 1, the geographic section, responsible for handling all intelli-
gence about Germany - NID 3, the Mediterranean
- NID 4, the Far East
- NID 5, handbooks
- NID 6, topographical studies
- NID 7, engineering and technical intelligence
- NID 8(g),traffic analysisat theOperational Intelligence Centre
- NID 9, signals interception
- NID 10, distribution of codes and ciphers
- NID 11, PoW intelligence
- NID 12, liaison with the Naval Section atBletchley Park