content: It's because he allegedly hacked the Federal Reserve and NASA, and presumably their servers are on US soil. I think it's like how Voat has to be hosted in the US because so much of what Voat discusses would be considered "hate speech" in European countries. It doesn't matter whether anyone browsing the site and participating in those threads is in said European country, it's that the servers are. Because the server is where the data is stored, that's where any actions, including any would-be crimes, are legally said to take place.