Want to know more about the National Security Agency (NSA)? It is a national-level intelligence agency of the United States Department of Defense, and operates under the authority of the Director of National Intelligence. The NSA specializes in Signals Intelligence (SIGINT), but a lot of what they do is classified. The NSA also has some special operations aspects to it, known as the Special Collection Service and the Scorpion Program. If you want to know more about what the NSA is, what it does, its missions, capabilities, training, requirements, and much more, watch this video!