iPhone X Face ID fail: A feature, not a bug

When the moment of truth arrived at the Apple event on Tuesday, iPhone X failed. During the world premier of the device’s lauded Face ID biometric security system, it took Craig Federighi three times to get face ID to unlock his demo phone. But don’t worry, Apple says. That’s supposed to happen.When Federighi began the iPhone X demo, he naturally started with a locked iPhone. “Unlocking it is as easy as looking at it and swiping up,” he said, hoping to magicall