David Stockman writes in today’s New York Times that the proposed tax on bank liabilities is a good start:

Make no mistake. The banking system has become an agent of destruction for the gross domestic product and of impoverishment for the middle class. To be sure, it was lured into these unsavory missions by a truly insane monetary policy under which, most recently, the Federal Reserve purchased $1.5 trillion of longer-dated Treasury bonds and housing agency securities in less than a year. It was an unprecedented exercise in market-rigging with printing-press money, and it gave a sharp boost to the price of bonds and other securities held by banks, permitting them to book huge revenues from trading and bookkeeping gains.

Meanwhile, by fixing short-term interest rates at near zero, the Fed planted its heavy boot squarely in the face of depositors, as it shrank the banks’ cost of production — their interest expense on depositor funds — to the vanishing point.

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To be sure, the most direct way to cure the banking system’s ills would be to return to a rational monetary policy based on sensible interest rates, an end to frantic monetization of federal debt and a stable exchange value for the dollar. But Ben Bernanke, the Fed chairman, and his posse are not likely to go there, believing as they do that central banking is about micromanaging aggregate demand — asset bubbles and a flagging dollar be damned. Still, there can be no doubt that taxing big bank liabilities will cause there to be less of them. And that’s a start.