>>5577914 (lb)

It was originally comms/encryption between army, af, navy. Mission expanded to monitoring all comms everywhere, and aggregation and joint information sharing, etc.

https://www.politico.com/story/2010/11/the-national-security-agency-is-established-nov-4-1952-044671

NSA has, no doubt, been "keeping an eye" on things, as much as possible, ever sense. Why do you think most anons suspicions are confirmed with Q? Q is dropping the truth, because Q has been around a while.

https://www.nsa.gov/about/mission-values/