What about your ability to refuse to tell law enforcement a password? In the U.S. at least there is some precedent that giving a password could be a self-incrim

What about your ability to refuse to tell law enforcement a password? In the U.S. at least there is some precedent that giving a password could be a self-incriminating act, so you can be protected under the Fifth Amendment. I wonder if biometrics to unlock a device would count as an "act". If not, people could be forced by courts to hand over their passwords.