Pre Snowden, I didn't believe in the conspiracy theories. However, it is by now apparent that not only were the conspiracy theorists right, but it was worse than anyone believed.
When you combine the Suite B announcement with the fact that the Director of the NSA (Mike Rogers) - as well as the former Director (Michael Hayden) - have both publicly taken a pro-encryption stance (1) in opposition of nearly every other three-letter agency in existence, you have to wonder what they are and aren't scared of.
a) They clearly have very little concern with today's conventional encryption.
b) They clearly are very concerned about upcoming developments, to the point that they are publicly asking the industry to skip Suite B entirely in favor of spending their R&D on implementing post-quantum algorithms.
I, really, -really- hate to be that guy, but these guys are in the know, and it doesn't seem like much of a stretch that we either have functional quantum computers running shor right now today, or the R&D is basically done, and we're a few months-years away from being able to.
(1) https://theintercept.com/2016/01/21/nsa-chief-stakes-out-pro...