The claim raised my bullshit flag pretty high. That being said, something like this is certainly information that the public deserved to know. This, unlike the Manning case, actually deserves whistleblower protection. I doubt much will come of it and it's one of those things that everyone pretty much guessed was already happening and has been happening for many years now but considering the government can get secret warrants, instant warrants, and even retro-active warrants there's no excuse for this besides trying to avoid judicial oversight.
I would bet that the system isn't being used for anything truly nefarious and its focus is indeed on external threats but that does not justify its existence. Given the information currently available I believe exposing this was the right thing to do and the method by which it was exposed was also right.
on a personal note, I've had to prepare and give multiple briefings on this shit while facepalming at the fact that AFN is showing fox news and msnbc as they plaster ts noforn documents all over the screen. so as a citizen, I think it was a noble act. as an IAO, fuck this guy.