Reply #23: DNS does not work that way. Neither does TCP/IP. Nor does *cough* NANOG.

[boppers]

You are talking about per-packet *payload* level filtering, or perhaps packet level extortion from content providers? Ain't gonna happen. There's too much competition for any vendor to consider it, it's instant suicide, as people will just set up a different peering points for traffic routing, and stop interconnecting (read: huge monetary loss) to offending networks. BTW: This kind of problem happens all the time, where some rogue ISP is totally hosing somebody's traffic. Those ISP's get blackholed, and lose *all* access to the internet until they fix their shit.

To paraphrase a well known axiom of internet engineering:
The internet treats censorship as network failure, and routes around it.