Can Cops Force You to Unlock Your Phone With Your Face?

"“When you put your fingerprint on the phone, you’re actually communicating something,” Albert Gidari, the director of privacy at Stanford University’s Center for Internet and Society, told me last year. “You’re saying, ‘Hi, it’s me. Please open up.’” That communication should be protected under the Fifth Amendment, just like a password, he said—and the same would hold for any other way of unlocking your phone using physical characteristics, including facial recognition."