as far as internet being global comment and the laws about intellectual property being country specific. while this is true all it does is make it hard for the copyright holders to file lawsuits and/or cease and desists agains the person running the server. That doesnt make it legal for someone in the US to download/upload the material, all it does is prevent the people from hosting access to the file from getting introuble.
so is weed legal in some countries? yes. does that mean i can go buy it there and bring it back to the US for my personal use? no, because it then violate US laws. same for downloading files. does sweden have laws in place to protect US copyrights (apparently not) but does that mean its legal for someone in the US to download the file? nope
-Darth Simon