Paul Krugman criticized Bernie Sanders again last week, arguing that the numbers in his economic proposal don't work. In particular, he went after economist Gerald Friedman of the University of Massachusetts, arguing that his projected growth figures are far too high to be plausible. Friedman and others fired back, arguing that they were using Krugman's own models to reach their conclusions! Bob and Tom discuss and enjoy this exchange, and then give the Austrian view of the whole thing.