NSA Friendship Annex, Maryland

An offsite location for the National Security Agency, with three buildings, known as FANX 1, FANX2, and FANX 3. It is a secure location, in a commercial office park area whose tenants include the Department of Defense Cyber Crime Center, the TSA, the Center for Development of Security Excellence, the National Electronics Museum, and is bookended by the principal locations of Northrop Grumman’s Mission Systems Division. Allegedly the Annex employs 10,000 or so, at the National Cryptologic Training Facility in FANX2, and at the Information Systems Security Organization at FANX3.