But if you set foot inside the EU... you are in the EUs jurisdiction. Extradition treaties are usually subject to 'dual criminality' - so you would have to be

But if you set foot inside the EU... you are in the EUs jurisdiction. Extradition treaties are usually subject to 'dual criminality' - so you would have to be breaking the country you are in as well to be extradited for violation of that same law to the EU. And be realistic. The US hasn't even successfully managed to extradite Kim Dotcom from mighty New Zealand.