Deepfakes – Bill Whitaker reports on the use of artificial intelligence to create deepfakes, a rapidly improving technology some experts say in the years to come will give anyone the ability to create special effects like a Hollywood studio. 1,000 Children – At least a thousand children taken from parents at the U.S. border three years ago remain separated, despite the seven-month effort by a U.S. government task force to reunify them. Sharyn Alfonsi speaks to the head of the task force and a family separated for four years. Deep Springs – Around two dozen of the world's brightest attend Deep Springs College, miles from the nearest town in the California desert, where students shoulder the responsibilities and challenges of life on a working ranch in addition to a full roster of academic work. Jon Wertheim reports.