More than six years ago, Fed Chairman Ben Bernanke — then still Fed Governor — gave a laudation for Milton Friedman, one of America’s leading economists. Friedman’s view on the Great Depression holds that the stock market bubble of the Roaring 20s was not the reason for the Depression. Instead, it was the wrong fiscal and monetary policy in the years after the bubble had burst that caused the Depression. Bernanke publicly said to Milton Friedman: “Let me end my talk by abusing slightly my status as an official representative of the Federal Reserve. I would like to say to Milton and Anna: Regarding the Great Depression. You’re right, we did it. We’re very sorry. But thanks to you, we won’t do it again.”...