A Syrian national wants to leave the USA and return to her home country ASAP. Therefore, she needs to receive her passport, which is currently with relatives in Germany.
• Is it, in general, legally admissible (from a US perspective) to mail a foreign passport to the States?
• What German/US enterprises offer such a service?
• Any hint whether there will be considerable screening delays at Customs?
• If everything else fails, could a private courier (German friend) get into trouble when entering the US to deliver the passport?
The staff from several mail enterprises unfortunately were unable to point to clear advice. Also partial answers are highly welcome.