Understanding the importance of intercepting and monitoring signals intelligence, or SIGINT, these five countries, known as the Five Eyes, signed onto the UKUSA agreement, which divvied up segments of the world for each country to monitor.
Signals intelligence monitors all signals received from electronic communications, including radio, radar, telemetry, and just about any type of broadcasted signal.
The advent of satellite technology in the late 50s matched with Cold War paranoia led to a rapid expansion of the program, indiscriminately monitoring all communication signals worldwide.
Project P-415, nicknamed ECHELON, became the dragnet surveillance program between the five nations, though it was controlled entirely by the National Security Agency – the American intelligence branch operating under the Department of Defense....<<<Read The Full Article Here>>>...