If I host content in the United States that is illegal in Iran does that mean I can be extradited to Iran to face charges?

I hope this kid fights this tooth and nail with good lawyers. He needs good representation as this case has potential to set very important precedents surrounding basic issues of sovereignty and jurisdictional precedence.

Is the US government going to argue that physical location is irrelevant on the internet? Does a crime committed on the internet happen simultaneously in every country? I'm really curious how the US government will present their arguments in this case. And equally curious how much the UK is willing to lose its right of sovereignty.