If you have a US visa in a passport, and you have to have your passport renewed at your home country, will the visa still be valid or do you have to go through the whole visa process again?
if the visa in your expired passport is valid, do you have to travel with the old passport (What if home country keeps old passport?) or do you go to the US embassy for a pre-approved stamp in your new passport?
if the visa in your expired passport is valid, do you have to travel with the old passport (What if home country keeps old passport?) or do you go to the US embassy for a pre-approved stamp in your new passport?