Bill Black: Shrink the systemically dangerous institutions -- the 20 largest banks in the U.S. [View all]

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JPMorgan Chase, the nation's largest bank, is under fire after losing at least $2 billion in derivatives trading it was warned carried high risk. The loss has renewed calls for tougher regulation of Wall Street, with critics saying JPMorgan could have avoided it under regulations the bank opposed. We're joined by former financial regulator, white collar criminologist, and University of Missouri-Kansas City Professor William Black, author of "The Best Way to Rob a Bank is to Own One."