Are you talking about the ID check in front of the TSA security check when taking a domestic flight in the US? The TSA will want to do more extensive screening if you do not show a "government issued ID" as listed here:
http://www.tsa.gov/travelers/airtrav...documents.shtm
If you are not a US citizen or permanent resident, shouldn't you have your passport and visa anyway while in the US (though TSA is not immigration and should not care about looking for visas in the passport(s))?
Yeah that's what I'm talking about, and yeah that's why I posted this thread, I saw that link earlier and it says "A foreign government-issued passport" so I figured my passport would be good. I do, it's just that my expired visa is in a different passport issued when I was a kid, I have a new passport now, w/ no US visa.