Correct me if I'm wrong, but I believe the finger sensors do not read fingerprints, but do some sort of size/pressure measurement.......And, at the hotels they've returned to using the room key for express passes. There's some sort of facial recognition system included whereby the first time you use the pass, the facial recognition scanned of you is used for all future hotel express pass uses. That prevents the fraud that occurred in the previous room key express system. Nearly all of the attractions had the facial scanners, but a few didn't have them yet. Those that didn't just checked the hotel card dates. Guessing that the future will use a system like this for park entry and lockers, if everything works smoothly.