Re: Encryption is not made "illegal"
Again, it's the over the top services that will be the "fun".
MPLS/BGP/TCP et al can be inspected, as it's a known protocol. If the packet's going up/down said wires turn out to contain encrypted stuff, that's WAY beyond the OpCo's wires, and the Telco's will simply go "meh" as it's not in their domain to control, unless they start doing DPI and being ordered to block anything they can't decode.
In which case we'll see digital steganography of another kind. Stuff will look like/be valid traffic, and just be nonsense, with anything relevant buried in some way that'll be harder to spot.