The film “The Big Short” has sparked lots of attention about the origins of the financial crisis and the people who saw it coming. While lot of attention is being paid to a few men who made a fortune on the housing collapse, this week Tracy and Joe talk to the editor of the blog “Calculated Risk” about Doris Dungey, an early blogger and whistleblower who tried to warn the world about brewing problems in the mortgage market. Between 2006 and 2008, Dungey, who wrote under the pseudonym “Tanta,” became an influential must-read for her prescient, good-humored writing and analysis.