[tacticalogic]

Pornography can be prohibited by regulation in various media and I can see prohibiting internet pornography by saying that the internet is based on Darpanet (it is) and is therefore subject to Federal regulation.

Under what enumerated power of the federal government do you see this regulation being enacted?

[PeterFinn]

"Under what enumerated power of the federal government do you see this regulation being enacted?"

The Darpanet is Federally owned and funded. It would just take a regulation, albeit a very carefully crafted regulation, to prohibit porn from being transmitted over Federally owned servers, routers, and switches. The government simply has to excuse itself from the porn industry. Technically, it would not be a speech limitation of any kind, but a limitation of network service.

Certifiably private networks would be unaffected.