Might the US wake up one day to find itself secluded on the internets? Just like the average Nigerian, who has exactly 0% chance of successfully ordering a product on eBay.
What happens when the world becomes fed up with the horrendous US legal system? I can easily see a file-sharing site (e.g. megaupload) blocking all US IP addresses from accessing its service. Essentially annulling any trace of liability against a corrupt and rotten legal and political system.
Granted, we're still pretty high up on the slippery slope. But, it still would be very interesting the moment the US becomes the country with 'unfavorable political climate'.