Facial recognition software: brilliant or dangerous?

With the introduction of the iPhone X, Apple brought to the forefront facial recognition technology, or what they call FaceID - a way for users to be able to unlock their phone just by looking at it. The technology has been around for decades, but not until now has it started raising questions about safety and security. Just recently, a controversial Stanford University study used face recognition to determine whether someone was gay or straight. Kathryn Ryan speaks with Clare Garvie - a privacy lawyer who researches the risks of face recognition technology at Georgetown University.