On Tuesday and Wednesday, Federal reserve chairman Ben Bernanke, a scholar of the epic financial meltdown of the Great Depression, and Treasury Secretary Henry Paulson, a survivor of more recent Wall Street crises, told Congress of their latest efforts to rescue the financial sector. If Fed chairman Alan Greenspan, Clinton Treasury Secretary Robert Rubin and his deputy Lawrence Summers were known as the Committee to Save the World during the financial crises of the 1990s, today's duo may go down as the Committee to Save Wall Street From Itself. For the past several months, the Fed and the Treasury Department have pulled all-nighters dealing with three-alarm fires, from the demise of Bear Stearns in March to the rising concerns over the mortgage giants Fannie Mae and Freddie Mac