A new book by a pair of academics explains how banks undermined post-WWII regulatory safeguards to sabotage the functioning of the free market — In January 1933, Ferdinand Pecora, a “soft-spoken son of Italian immigrants,” assembled a committee to investigate what in the hell led to the 1929 stock market crash. There were, of course, many fathers of the Great Depression, but a 2011 Smithsonian article lays out one of the basic underpinnings of…