Jim, thanks for finding that. Now, if a USC is returning from these US territories and are NOT required to present a passport upon their return to the Continental US, then this leads me to believe that the setup is exactly the same as any domestic airport and these flights are considered domestic and not international. If a USC is not required to present a passport then that must mean they do not check for passports at all. Otherwise how would they know who is a USC and who is not, as the USC is not required to have his or her passport for these trips. This leads me to believe that they won't be asking any other nationals to present their passports as well--how can they prove these other nationals are not USCs? This leads me to believe that a new Chinese immigrant or, non-immigrant in the case of a K-1 visa, should be able to visit any of these US territories without any additional visas. These territories, for the purpose of traveling, would be exactly like any other US states. Why couldn't a new Chinese immigrant simply claim to be a USC, thus not needing to show his or her passport, if confronted? Anyone have any first hand info regarding traveling to any of these territories? Did you witness any checking of passports upon disembarking the plane and entering the airport? I travel to Puerto Rico and back a lot and all you have to show is some form of U.S. I/D with just the normal airport security check is all