We also have the Snowden revelations… They also snoop on regular “normal” citizens, non-citizens and about everyone.
And concerning the “why”: I guess if your job is to spy on people, and you have a big budget available, you do just that. And it’s “better” to do more surveillance, than to miss something. Ideally you’d do total surveillance. Only thing stopping that is law and maybe some supervisory board.
That’s right. People want a firewall. Maybe on the devices and/or on the router. But NAT isn’t that. It’s address translation. Predominantly because there aren’t enough addresses available. It’s a workaround. And it kills things like VOIP, videoconferences, direct communication etc. And then you need a workaround for the workaround to work around that… If you just want to drop incoming traffic and not expose clients, that’s what the firewall is for.