Yes, it is a USA law. I didn't see anything in that article(which, by the way, is completely biased to begin with, seeing as it comes from CNET News, which is a joke in itself) stating that the United States wishes to prosecute people outside of the homeland. Now, do I believe that those Swedish sites should be prosecuted? If they're attacking American companies, then yes, I feel America should do our best to protect our economy.