Primatologist Frans de Waal has spent 40 years studying the behavior and emotions of primates. He talks about how primates experience jealousy, reconciliation, and empathy — just like humans. "That's a spectrum of behavior that we have, and the same thing is true for many other species." His new book is 'Mama's Last Hug.'

Film critic Justin Chang reviews Jordan Peele's new horror movie, 'Us.'

As a teen, Heidi Schreck debated the Constitution in competitions. Later she realized it had failed to protect four generations of women in her family. "I believed it was perfect. I believed it was a tool of justice. I did not realize as a 15-year-old girl how profoundly I had been left out of it. I didn't realize that it didn't protect me," Schreck says. Her play, 'What the Constitution Means to Me,' is headed to Broadway.