For anyone curious ---- this is an older article but does a good job of describing the NSA data center. I remember when it first was under construction with an estimated capacity of a zettabybe, and in this 10 year old article it had already jumped over a yotabyte. Which is super scary. Also of note, which the article covers, is that a primary mission of the center is breaking encrypted comms and systems. Super scary stuff in my book. Because it's not that "they" don't know the data --- it's about how well they can use the data that they have and drill through all of it. And those systems have come a long long way in recent years.
https://www.wired.com/2012/03/ff-nsadatacenter/
https://www.wired.com/2012/03/ff-nsadatacenter/
