Experts say JPMorgan Chase's $2 billion loss is likely the tip of the iceberg. If they were hedging this way, so are the other banks that are even bigger now than when they were "too big to fail" in 2008. Forget the Volcker Rule - we need to bring back Glass-Steagall to prevent these behemoths from gambling with FDIC-insured customer funds. With Karoli, Cynematic and Donna Schwartz Mills.