Originally Posted by
Often1
How would an arriving passenger on an ESTA be admissible? E.g., how would she have been permitted to board at her European departure gateway?
Good point.

Ok, let's stay with diplomatics and US citizens. Just as background, a befriended family of us with diplo-status will have their first run into the US due to their status and I would like to collect some information about the proces to get them as smooth as possible through it.