Originally Posted by Superguy
Biometrics are not foolproof. There is ample evidence to show that it doesn't take much to defeat these systems. Can it help? Possibly, but it isn't the silver bullet that most people make it out to be.
You're referring to unattended biometrics such as keyless entry, where the user can play games with spoofing the system. A fingerprint scanner with a customs officer looking at you is almost impossible to beat.