‘Think Again’ author Adam Grant wants everyone to reconsider their assumptions

Adam Grant, the renowned professor of psychology at Wharton School of the University of Pennsylvania, spends his days unlocking the mysteries of human behavior, translating it into terms the rest of us can understand. In his new book, “Think Again: The Power of Knowing What You Don't Know,” he encourages people to reconsider their assumptions and convictions built up over a lifetime. He sits down with NBC’s Harry Smith in this week’s Sunday Spotlight.