And that's another problem.
We "drove" conveyances in this country for many decades without having to present a "license" to govt. agents.
In a free society, it is a fundamental right for people to peaceably travel from place to place without being interfered with or detained by govt. agents.
When folks yield their rights, you don't get them back.
Thats the abysmal piece about these terrorists. In order to fight them, we are being asked to give up rights forever.