https://nsa.gov1.info/utah-data-center/
http://arstechnica.com/information-technology/2013/08/buildi...
https://en.wikipedia.org/wiki/Global_surveillance_disclosure...
FWIW - That's a parody site. However, that's not to disclaim that the Utah data center isn't being built.
One thing I'd guess too is that the NSA must have the mother of all password databases. Given all the login forms that went through unencrypted and still do. If I was the NSA that's the first thing I would have captured.
Although really the other 2% wouldn't be hard to get considering the power they have.
Also of note is the "Future Enlargement" section of that article, where it expands on other partnerships: "Six Eyes", "Nine Eyes", "Fourteen Eyes".