In desperate situations, fear can give us the adrenaline we need for survival, or drive us to total terror and impede our ability to think clearly. Science writer Jeff Wise, columnist for Popular Mechanics, examines how and why we respond to fear in his book Extreme Fear: The Science of Your Mind in Danger, now out in paperback. Wise returns to talk about how fear influences political decisions and drives social norms as terrorism becomes more and more prevalent in our world. [Broadcast Date: May 18, 2011]
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