Mr Vertigo
Registered Users (C)
I understood you, but what if at some point they will want to take a look at your foreign passport? And what if you do it as a LPR with your only passport?
And I am pretty sure that they could see whatever passenger manifest on whatever commercial flight on the planet, especially after 9/11.
They have no right to look at any of my passports other than the one I'm using for entry, and that's the US passport. Should there be a court order for a search warrant, they can do that, but not on a routine border check. About the passenger manifests, that's a possibility, but that's why I chose Brazil as an example, as its relations with the US are less than optimal and it doesn't share much information with it.