AOL Postmaster on stopping spam. He's not wrong. ISPs ought to police their networks for security issues, and I think that the government ought to be greasing the wheels for this through liability limitation and possibly tax incentives. Its in the public interest.
I also think his proposal for a private network isn't entirely unreasonable at this point, but the devil is in coming up with a social contract that everyone is happy with and finding a way to govern it effectively, and you can see how well ICANN is doing with that. It would be hijacked to serve special interests just like ICANN has been.
How to Stop Spam