Jamie Dimon on the financial system

As chairman and CEO of JPMorgan Chase, the biggest financial institution in America, Jamie Dimon has mentioned he is “cautiously pessimistic” concerning the financial system. He explains to “60 Minutes” correspondent Lesley Stahl how he’s making an attempt to enhance the lives of lower-income Americans; why he is referred to cryptocurrencies like Bitcoin as a Ponzi scheme; and his latest near-death expertise.