This strikes me as the right approach.
Volcker Calls for Restricting Banks’ Risk, Trading Activity – WSJ.com
The comments reflect Mr. Volcker’s long-held view that banks should act more in line with their traditional role and not take extremely risky gambles, which could threaten the viability of commercial banks and expose the Federal Reserve and taxpayers to large risks.
People keep yapping on about how the financial systems is the “circulatory” system of the economy. Fine. Then by extension, the amount of risk we have been allowing into the commercial banking systems is akin to eating four hamburgers every day for every meal, and then doing amphetamines, adn then running a marathon while smoking and hoping it won’t give us a heart attack.