Countries have tried to claim ownership of the internet for years and it never works, all this will do, rather than affect the world is pull companies out of america, sending the economy into ruins and the US government being forced out, and possible riots when the $ is almost worthless.

All companies will have to do is move out of america if thier sites are blocked for whatever reason because American law has no power outside the US and that applies to the internet, the US cannot block websites in UK for example unless they are US websites which as I said will cause companies to leave US for other countries and just loose customers in america, if it passes it may open the flood gates but I really dont believe any other country would try it because it has the possibility to completly ruin a countries economy when so much is online.