Originally Posted by
CaptainMiles
With this international sterile area, if would be great if they created an international transfer area without customs and immigration. It would be a boon for Delta for connections between Europe and the Caribbean.
The problem is that the US doesn't have exit checkpoints, so there would be no way to segregate passengers who hadn't cleared from people who were leaving the country (either by having cleared previously or been born here).
Put another way, in order to make what you describe happen, you'd have to have your passport stamped transferring from a US domestic flight to an international flight.