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Intelligence Operations

Covert Operations

Support to Military Operations

Airborne Intelligence Gathering Operations

Support to Policy

Support to Law Enforcement


Counterterrorist Operations

DIGRAPH and TRIGRAPH are two or three letter acronyms for the assigned codeword ornicknames of special access programs. CIA "crypts" are code words for operations and individuals. CIA "digraphs" are the first two letters of a crypt that link a particular crypt to a particular location. CIA often created crypts to refer to other US government agencies; for example, the FBI was "ODENVY." The digraph for Mexico City was "LI," and for Cuba, it was "AM." CIA conceived crypts as a code to hide the identity of an operation or an individual. "Sluglines" are CIA routing indicators, consisting of two or more crypts, that appear above the text in CIA cables. An example of a CIA slugline is "RYBAT GPFLOOR." "RYBAT" is a CIA crypt that meant "secret," and GPFLOOR was the crypt that CIA gave Lee Harvey Oswald during its post-assassination investigation. When written in all upper case letters, CRYPTO is the marking or designator identifying COMSEC keying material used to secure orauthenticate telecommunications carrying classified or sensitive U.S. Government or U.S.Government-derived information. When written in lower case as a prefix, crypto and crypt are abbreviations for cryptographic.

Presidential Decision Directive 35 (PDD-35) "Intelligence Requirements" of 02 March 1995 establishes four categories of intelligence operations: Support to Military Operations [SMO], Support to Policy, Support to Law Enforcement, and Counterintelligence (CI). It also defines intelligence requirements from tier 0 to tier 4. Tier 0 is warning and crisis management, while Tier 4 is subjects that are virtually of no interest to the United States.

In 1995 the DCI, through the auspices of the Executive Director for Intelligence Community Affairs and the Deputy Assistant Secretary of Defense for Intelligence and Security, initiated a new budgetary process for fiscal year 1997. The Mission Based Intelligence Budget (MBIB) is structured according to the four "mission areas" for US Intelligence defined under PDD-35. Program Managers associated with the National Foreign Intelligence Program (NFIP) are required to articulate how funded capabilities and proposed initiatives support these four mission areas. Tasking from the Community Management Staff includes defining national missions and assessing the contribution made by NFIP programs to complete these national missions. Decisions related to the structure of the MBIB were worked out during December 1995 and formal documentation for the draft FY1997 MBIB was finalized in February 1996.

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