(Denny Crane: "Sometimes you can only look for answers from God and failing that... and Fox News".)
Agree with both parts of your suggestion but suggest it still doesn't go far enough for the intent of making this country more secure. Perhaps for any state that 'opts out' we would also require a passport to travel to and from. Which would also mean some checking at the borders for people not flying. AND all expense for doing so must also be bourne by that state.
But do to fellow citizens support of Congressional stupidity "towards our national security," there were 3000 fellow citizens killed and billions of dollars of fellow citizens private property destroyed by the terrorist attack on 9/11.
You ask, "what stupidity are you referring to?"
The "stupidity" of disarming fellow citizens and private property owners unconstitutionally, gave the terrorists the strategic advantage of a successful hijacking of an aircraft.
The terrorist's would never had considered hijacking aircrafts if they had known that there may be 10, 50, 100 armed citizens on-board U.S. aircrafts, prepared to secure and defend those aircrafts from hijackers.
So, the bottom line is citizens are dead, citizen's property has been destroyed, and enumerated rights have been violated ("rights" that many generations of fellow citizens have died for to protect) because of Congressional "stupidity," supported by "stupid" citizens, not by the "niggardly attitude towards our national security" by taxpayers.
You really want a de facto National ID card?
Sure, as soon as all workers in that state can skip federal income taxation. Or maybe the state should just redirect witholding to them.
National security? Do you really think that this would have stopped 911? Can the states stop sending money to the feds since the border is till wide open over 3 years after 911?
This war on terror is a phony war and the wide open border proves that beyond any doubt. But let's not let that keep us from passing more laws that interfere with state's rights. Why not standardize marriage licenses, vehicle registration, public education, library cards..no wait. It would be more efficient to stop playing games and just eliminate the states.