Amanpour: Steven Pinker and Ev Williams

Aired: 2/22/2018 | 0:26:46 | Episode
Steven Pinker, psychologist and author of "Enlightenment Now", talks with Christiane Amanpour about how we perceive the world and the pushback against science and reason. Twitter co-founder Ev Williams discusses the responsibility tech giants have to fix the "broken" media and Twitter's role in electing Donald Trump.

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