Our Unconscious Minds

How does the unconscious mind influence our society and our world? We’ll explore the subject this hour with Shankar Vedantam, longtime author of the Washington Post’s popular “Department of Human Behavior” column. His new book is “The Hidden Brain: How Our Unconscious Minds Elect Presidents, Control Markets, Wage Wars, and Save Our Lives” (Spiegle & Grau, 2010).