FaceID and TouchID aren’t protected by that as I understand it.

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.

	▲	SoftTalker 3 hours ago \| parent [-]
		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.