What is Intelligence?
Since 9/11 the United States as been engaged in a world wide fight against terrorism.
The intelligence community uses five basic
intelligence sources:
Geospatial Intelligence (GEOINT) is the exploitation and analysis of imagery, Imagery Intelligence
(IMINT), and geospatial information to describe, assess, and visually depict physical features and
geographically referenced activities on the Earth.
Human Intelligence (HUMINT) is intelligence derived from information collected and provided
by human sources. This information includes overt data collected by personnel in diplomatic and
consular posts as well as otherwise unobtainable information collected via clandestine sources,
debriefings of foreign nationals and U.S. citizens who travel abroad, official contacts with foreign
governments, and direct observation.
Measurement and Signature Intelligence (MASINT) is technically derived data other than
Imagery and Signals Intelligence (SIGINT). The data is analyzed and results in intelligence that
locates, identifies, or describes distinctive characteristics of targets. It employs a broad group of disciplines including nuclear, optical, radio frequency, acoustics, seismic, and materials sciences.
Examples include the distinctive radar signatures of specific aircraft systems or the chemical
composition of air and water samples.
Open-Source Intelligence (OSINT) is intelligence produced from publicly available information
collected, exploited, and disseminated in a timely manner to an appropriate audience for the
purpose of addressing a specific intelligence requirement. OSINT draws from a wide variety of
information and sources, including the following:
• Mass Media — newspapers, magazines, radio, television, and computer-based information.
• Public Data — includes government reports, official data such as budgets and
demographics, hearings, legislative debates, press conferences, speeches, directories,
organization charts, marine and aeronautical safety warnings, environmental impact
statements, contract awards, and required financial disclosures.
• Gray Literature (a.k.a. Grey Literature) — open-source material that usually is available
through specialized access for a specific audience. Gray Literature can include, but
is not limited to, research reports, technical reports, economic reports, trip reports,
working papers, discussion papers, unofficial government documents, proceedings,
pre-prints, studies, dissertations and theses, trade literature, market surveys, and
newsletters. The material cuts across scientific, political, socioeconomic, and military
disciplines.
• Observation and Reporting — includes significant information not otherwise available
that is/has been provided by amateur airplane spotters, radio monitors, and satellite
observers among many others. The availability of worldwide satellite photography,
often high resolution, on the Web (e.g., Google Earth) has expanded open-source
capabilities into areas formerly available to major intelligence services only.
Signals Intelligence (SIGINT) is information gathered from data transmissions, including
Communications Intelligence (COMINT), Electronic Intelligence (ELINT), and Foreign
Instrumentation Signals Intelligence (FISINT). SIGINT includes both the raw data and the
analysis of the data.
• COMINT is the capture of information for the purposes of tracking communications
patterns and protocols (traffic analysis), establishing links between intercommunicating
parties or groups, and/or analysis of the meaning of the communication.
• FISINT is information derived from the intercept of foreign electromagnetic emissions
associated with the testing and operational deployment of non-U.S. aerospace,
surface, and subsurface systems including, but not limited to, telemetry, beaconry,
electronic interrogators, and video data links.
• ELINT is information derived primarily from electronic signals that do not contain
speech or text (which are considered COMINT). The most common sources of this
type of information are radar signals.