Plus I suspect you will still need to pull your card. Biometrics sort of work when you are trying to match one user with one face (authenticate on a computer).

Plus I suspect you will still need to pull your card. Biometrics sort of work when you are trying to match one user with one face (authenticate on a computer). But if you are searching a face among a billion users, you will get false positives, not the least because of twins. So you still need a way to tell your ID to the system.