‘Black Edge’ Recounts The Biggest Insider-Trading Scandal In History

Sheelah Kolhatkar discusses the investigation of billionaire hedge-fund trader Steven A. Cohen. She says the ways Wall Street elites accumulate wealth often negatively affect the rest of the country. PeteLinforth / Pixabay Insider-Trading DAVE DAVIES, HOST: This is FRESH AIR. I’m Dave Davies in for Terry Gross, who’s off this week visiting family. Remember when you…