It appears that the specific colo being used was also a major NSA bulk intel collection point. The site was codenamed WAXTITAN and it was part of the BOUNDLESS INFORMANT program (we know this because of the Snowden leaks).
I wrote a small script to take screenshots of every DHS Fusion a Center site that was part of #BlueLeaks [1]. Some of the sites are very strange looking.
Data Foundry and Netsential were also part of a series of bizarre allegations made by a former employee back in 2014 and posted to Cryptome.org in some detail. They were serious enough Data Foundry had to write a series of articles and posts denying then. I tried to merge what we know now with what was originally claimed back in 2014 here [2].
[1] - https://www.dropbox.com/sh/qyqd8m7goj6uruh/AADM-6C7L7sy4XTad...