He actually sort of answers this in the last question they ask at the end. He says that because he's made it so obvious that they're his enemy it's impossible f

He actually sort of answers this in the last question they ask at the end. He says that because he's made it so obvious that they're his enemy it's impossible for them to do anything about him in the public light except possibly have him killed which would obviously be incredibly suspicious. As far as the actual legality of the things he does, it seems like pretty much everything in the talk I had heard before, mostly through the Snowden files.