Have you ever met your doppelganger? It could be a stranger that people constantly mistake you for, or a celebrity that friends say you’re a spitting image of. But for acclaimed author, filmmaker and social activist Naomi Klein, finding her doppelganger turned into a much darker experience. That’s because Klein has been mistaken for noted conspiracy theorist and anti-vaccine crusader Naomi Wolf for years. Klein joins Piya Chattopadhyay to explain why she used that experience as a starting point for her book Doppelganger: A Trip into the Mirror World, which takes on the complicated, messy and misinformation-filled world of social media where “the other Naomi” thrives.