Did you mean "is perjury enforceable everywhere"? I bet the US government could get you extradited for something or other, if not, if it really wanted to. But I

Did you mean "is perjury enforceable everywhere"? I bet the US government could get you extradited for something or other, if not, if it really wanted to. But I don't think they'd have much trouble getting you extradited (or at least punished for your country's version of perjury) for violating a law which you explicitly agreed to abide by...