[quote=svelte][quote=deadzone][quote=UCGal][quote=deadzone]Non-US citizens are required to carry documentation by law. I don’t need to prove that to you. Everyone is required to carry driver’s license while operating a vehicle.
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Ok. I’ll try to make my point again.
US Citizens are *not* required to carry documentation of their citizenship.
[/quote]

While a driver’s license is not a “citizenship document” from a federal point of view, it is a pretty good proxy. [/quote]

What if you’re a passenger? If you are a US citizen and you are not driving, you are not required to carry a DL.

No need to prove citizenship then, eh?[/quote]

Easy: “What is your social security number?” “What is your name?”
Call it in, if it matches and is valid, you’re good to go.