"US law"
it isn't global
The US hasn't been the nicest or one to follow rules lately. They entered Pakistan illegally to kill Bin Laden, recently they had drones flying over Iran and the Iranians dispatched fighters to intercept. When CNN got word of it they said Iran was at fault, however if Iran had a Drone flying over us I'm sure we would shoot it down and they would still be the badguys. Double Standards man, it's ok if the US does it.
If someone from the Netherlands were to hack a website and change their IP I am sure the US would find a way to fry that guy.