That's correct, they are not. A complete failing of legislation and blatant disregard of the spirit of the 5th Amendment.
So do not have biometrics as device unlock if you are a journalist protecting sources.
They are considered to be more like keys to a safe than private knowledge. They also can't be changed if compromised. A sufficiently unguessable PIN or passphrase is better than biometrics.
They are considered to be more like keys to a safe than private knowledge. They also can't be changed if compromised. A sufficiently unguessable PIN or passphrase is better than biometrics.