"The powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people."
Just because it is written that the states can't do certain things, it does not mean that the federal government can do them, UNLESS SPECIFICALLY ENUMERATED IN THE CONSTITUTION.
Oh, so you want to resurrect the lost (10th) amendment? You must be one of these radical, right-wing extremist who want to refer to the constitution and read what is written there to figure out what it means! [/sarcasm]