The Intelligence Reform and Terrorism Prevention Act of 2004 (IRTPA), states “National Intelligence” and “intelligence related to national security” refer to all intelligence, regardless of the source from which it is derived and including information gathered within or outside the United States, that pertains, as determined to be consistent with any guidance issued by the President, to more than one U.S. Government agency; and that involves:
- Threats to the U.S., its people, property, or interests;
- The development, proliferation, or use of weapons of mass destruction; or
- Any other matter bearing on U.S. national homeland security.
The U.S. Government uses various forms of intelligence to improve and understand the consequences of its national security decisions. Intelligence can help inform military actions, decisions on policy, negotiations from an international perspective, and interactions with foreign countries and their leaders. Intelligence can also aid the efforts of homeland security providers and first responders.