According to Today's Article this guy, who has never been in the U.S. until now, was extradited from Australia to the U.S. for violating U.S. law while in Australia.
So, watch out. If you speed, and get caught, you may have to pay the speeding ticket for your jurisdiction, as well as somewhere in the U.S.
And, here, I was hoping to avoid the ridiculous U.S. legal system by not living there. I guess it doesn't work like that.