
Economists debate cause and effect of Lehman Brothers' collapse a year ago and politicians and the public seem to blame the financial crisis on the banking sector. Furor has died down, some banks proving to be surprisingly resilient, yet Wall Street still faces increased regulation and political pressure. Update from Economist.com: "Wall Street's new shape" leads off: AT THE press of a button, double doors sweep open: Welcome to the office of Lloyd Blankfein, chief executive of Goldman Sachs.