It's perfectly plausible. Such cycles are the way of things.

I'm not going to make predictions for the future because you know as little as me, but I'd be shocked and horrified if they did unless there were sweeping changes that made the NSA and its foreign equivalents more acceptable.

I think your view of history is just as myopic. The NSA has been around since the 50s and the original FISA of 1978 was written specifically because it was revealed that the NSA was spying on domestic targets at the request of Nixon.

Everything old is new again.

Fair point!