People always assumed they did this but now we have proof. I thought it was amazing that the government spent so much time discussing the call records being logged.. when they are doing so much worse. Maybe that's how they keep people focusing on what the government wants to talk about? (aka look over here, nevermind that thing over there...) This find is way worse than call detail records..
I agree doubly so however - the phone records are near the very bottom of the list when it comes to the severity of what Snowden's(and possibly other's) revelations have brought to light.