What does Signals Intelligence (SIGINT) involve?

• A. Collecting weather radar data
• B. Gathering open-source information from public social media
• C. Involves collecting foreign intelligence from communications, information systems, and providing it to customers across the U.S. government
• D. Monitoring traffic cameras

Answer: (C)

Signals Intelligence focuses on intercepting and exploiting electronic signals to gather foreign intelligence. It includes collecting information from communications and information systems, processing and analyzing it, and delivering actionable intelligence to government customers. The option that describes collecting foreign intelligence from communications, information systems, and providing it to customers across the U.S. government matches this scope precisely.

Weather radar data is meteorological data, not signal intelligence. Gathering open-source information from public social media is OSINT, not SIGINT. Monitoring traffic cameras is surveillance of physical infrastructure, not interception of signals.