My previous employer collocated in a Terremark facility called "NAP of the Americas" located in downtown Miami. (http://www.terremark.com/data-centers/north-america/nap-amer...) It's a pretty decent facility. One of the most interesting things about it is that at the time (2-3 years ago) they liked to boast that more than 2/3rds of all communications traffic to South America (voice and data) passed through the building. You can bet the NSA has a nice cozy relationship with them. It was always a bit surprising to me that South America had that much of a single point of failure, so it's not surprising they might want to bolster their connectivity a bit.