They've got mine... Fly to Canada and your face gets scanned. I forgot this event and was surprised, walking through an American airport flying to another domestic location, that my picture and name appeared on an airline's screen without input. Not a government screen, mind you. I forget the exact context but the feeling persists. Very unnerving.
If it's the same system I saw, it's branded with the airline, but hooked to the government passport database. And if you read the disclosure, the airline promised to delete your data within some small number of minutes or face stiff penalties. Stiff enough that I believe that there is no additional information on you from using that system.