even without SOPA or PIPA, the US has already done extraterritorial intellectual property enforcement (ref: US and Elcom v Sklyarov [2001])
this US attempt comes at the heels of the french HADOPI
in essence, US wants the ISP and/or web host sites and/or the site itself (e.x. tsikot.com) to be their police or otherwise be held liable in the same degree as the infringer.
this sends a chilling message to sites for sharing, social networking or foruming