Elon Musk: Artificial Intelligence Poses 'Existential Risk'

Governors are trying to make sense of an urgent message they got over the weekend. Elon Musk, the billionaire scientist behind Tesla Motors and SpaceX, swung by a gathering of state leaders and warned them artificial intelligence is an existential threat to human civilization. Colorado's Governor John Hickenlooper, who was there, described that moment to NPR. JOHN HICKENLOOPER: You could have heard a pin drop. A couple times he paused and it was totally silent.