[mindslight]

So that seems like something that should be easily dealt with in a few minutes - request that they present their US passport, apprise them of the fine for entering without having obtained a US passport, and/or turn them away since their entry would be illegal. None of these require hours of questioning in a back room.

I'm tired of this trend of people using a violation of the law, especially administrative style infractions, as a justification for arbitrary horribleness.