Originally Posted by
LondonElite
Hmm, my guess is that he would just travel on his new US passport, and not show the old one. What do others think?
Of course! Why carry an expired passport? If Tunisia and the USA allow for dual citizenship, it would still be better to carry the USA passport when going to Europe - assuming both passports are valid.
OTOH, when going to Cuba or N. Korea, a valid Tunisian passport would be better. 🙄