Originally Posted by
celle
Will there be a problem using Passport 2 if my fingerprints show as belonging to Passport 1?
Your fingerprints always belong to you and not the documents involved. We would see all prior encounters regardless of past or current declared nationality, or identity.
Nice to see a prompt and pretty thorough response.
The DHS/CBP's claim in that last sentence is not necessarily a given.
[The US doesn't prohibit US citizens from being dual-nationals -- we just will only officially recognize a US citizen's US nationality. This practice of the US is quite common for countries that don't have a prohibition against their nationals holding their citizenship and that of another country at the same time. Other countries have a prohibition against their citizens being dual-nationals -- this kind of ban covers substantial populations in places in Africa and in Asia that were once ruled by Europeans.]