Great Transformation

Steve Inskeep, co-host of NPR’s Morning Edition, talks about the rapidly growing city of Karachi, Pakistan. Gavin Andersen, lead developer of Bitcoin, and a small business owner who accepts the experimental digital currency, explain how it’s used and whether it’s catching on. Michael Grynbaum, New York Times Metro desk transportation reporter, and Scott Curtis, a former Wall Street trader who lost his job during the recession, discuss the appeal of driving a cab.