[politician]

It's not entirely misleading if you can imagine a certain government requiring registration of devices before allowing access to networks like the Internet.

[kiallmacinnes]

I'm not sure I see how IPv6 would really make that any easier? Privicy extensions or not...

Forging a MAC address is trivial.. If that's all you use to enforce the registration, it will be trivial to bypass!

And - if government wants to do this.. There are easier ways.