The right to privacy is established in American law but it is not explicit in the Bill of Rights, aside from the 4th Amendment's "secure in effects and possessions, etc". A national ID card means that your actions and whereabouts are not private, or at least not if a government agent asks.

On the other hand, a driver's license is just as much a tracking device -- any competent investigator can find out your Social Security umber from your DMV record, and thence 'most anything else.

But a state system is one thing; a Federal system is something altogether else. Not sure I like it at all, at all. It seems to invert the power flow from individuals to a Federal government and turn it the other way, as though without an artifact provided by the Federal Government your personhood is suspect. Nasty bit of business, with possible long-range harmful effects.

I say to hell with that idea.

Amos