[mikester]

In my reading I don't see a lot of backing for it but I also don't see a lot of push back. In current form it is optional so the above board folks will do it and the bad guys won't.

Still; that's quite a resource to be able to block. There are millions of web sites that cooperate with this sort of plan and work with the net filter companies to make sure their sites are filtered from the view of minors. This makes it leaps and bounds easier to do by blocking the top level domain entirely. Then all you have to worry about are the bad guys.