We're All Prisoners, Now: US Citizens to be Required ''Clearance'' to Leave USA

Consider what might happen if you're a U.S. passport holder on
assignment in a country like Saudi Arabia. Your visa is about to
expire, so you board your flight back to the United States. But wait!
You can't get on, because you don't have permission from the HSA.
Saudi immigration officials are on hand to escort you to a squalid
detention center, where you and others who are now effectively
"stateless persons" are detained, potentially indefinitely, until
their immigration status is sorted out.