The existence of the AT&T spy buildings were public knowledge years before the Snowden leaks happened.
Maybe the renewed publicity around it was a not-so-subtle reminder that they know exactly who the regulators and congress (and everyone else) are sleeping with.
Prism has been common knowledge since the outing of closet 641 A, ~15 years ago. Even the MSM ran the stories... and most people still couldn't give a shit.