It's not exactly right to say that our don't-ask-don't-tell quasinationalization policy has given us "ownership but not control". An assertive Treasury secretary has tremendous leverage over zombie bank managers. Instead, what we have is is control without accountability. An informal, unauditable, hydra-headed set of private managers and public officials controls how quasinationalized banks behave. Neither taxpayers nor shareholders have reason to believe that decisions are being taken in their interest. The informality and disunity of control impedes the kind of hands-on, detail-oriented supervision and risk management that ought to be the core preoccupation of bank managers. Exactly as opponents of nationalization feared, America's large banks are poorly run behemoths that routinely make idiotic commercial decisions to satisfy tacit political mandates. No one really knows who is responsible for what.