http://www.govtrack.us/congress/bill.xpd?bill=s111-3804
http://www.senate.gov/reference/common/faq/How_to_contact_se...
No good can come of the gov't trying to control what domains can be accessed, and it won't stop those that wish to do us harm or take advantage of us, because they'll just use another domain.
Still, things like this make me wonder if the alternative root servers would gain any traction. Of course, those are not free of their own problems and politics.
That, or somehow obsolete DNS altogether. I've often thought of setting up a site without DNS to see if I could get it ranked on the first page or two with only a bare IP address. I still use a handful of bare public IPs from places I worked at ten years ago. Surely, if the need arose, people could learn to memorize groupings of numbers again.
Then again, once IPv6 rolled out in a big way, raw IPs would be a real bitch to just type in, nevermind remember.