For many of us, the term artificial intelligence conjures up images of science fiction movies. But what is it really? As AI technology becomes a bigger part of our world, Lester Holt sits down with Tristan Harris and Aza Raskin, co-founders of the Center for Humane Technology, to talk about how it works. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.