Intelligence and Information Sharing Initiative: Homeland Security Intelligence & Information Fusion [open pdf - 272KB]
"Terrorism-related intelligence is derived by collecting, blending, analyzing, and evaluating relevant information from a broad array of sources on a continual basis. There is no single source for terrorism-related information. It can come through the efforts of the intelligence community; Federal, State, tribal, and local law enforcement authorities; other government agencies (e.g., transportation, health care, general government), and the private sector (e.g., transportation, health care, financial, Internet/information technology). For the most part, terrorism-related information has traditionally been collected outside of the United States. Typically, the collection of this type of information was viewed as the responsibility of the intelligence community and, therefore, there was little to no involvement by most State and local law enforcement entities. The attacks of September 11, 2001, however, taught us that those wanting to commit acts of terrorism may live in our local communities and be engaged in criminal and/or other suspicious activity as they plan attacks on targets within the United States and its territories. Important intelligence that may forewarn of a future attack may be derived from information collected by State, tribal, and local government personnel through crime control and other routine activities and/or by people living and working in our local communities."
Department of Homeland Security: http://www.dhs.gov/