Well, it is a very dangerous ruling as well-for ALOT of other important basic laws. For instance, if I embezzle money and I don't get prosecuted by the Feds, I can now claim the state law is over-reaching into federal jurisdiction. If I am caught hauling drugs, I can claim Arizona law is encroaching on Federal jurisdiction. Obama's quest to garner illegal immigrant votes is going to flood the federal courts with what should have been simple state criminal prosecutions. The basis of the lawsuit and ruling is that states cannot usurp federal laws. That is a can of worms that any good defense lawyer is going to use to delay and obstruct alot of state prosecutions.