19th century Americans lived through plenty of recessions, but they called them "revulsions" back then. New Yorker Magazine writer Adam Gopnik talks with John Moe about our historical amnesia when it comes to capitalism overheating. Gopnik is out with a new book "Angels and Ages: A Short Book about Darwin, Lincoln and Modern Life" that looks at how a president and an evolutionary scientist used clear language to explain the complexities of their own times.
