Discovery is a phase that's always been there in the court system. What I don't get is that the judge is allowing them to go on a fishing expedition to prove that they can sue him in that jurisdiction. I mean right now, they haven't even proven that they can sue him in this court. If they can't prove that on their own, then why are they allowed to waste the court's time spending months (years?) searching for some proof that probably won't turn up?