The idea of secret banking cabals that control the country and global economy are a given among conspiracy theorists. After this week's congressional hearing into the bailout of American International Group Inc., you have to wonder if those folks are crazy after all. Wednesday's hearing described a secretive group deploying billions of dollars to favored banks, operating with little oversight by the public or elected officials. We're talking about the Federal Reserve Bank of New York, whose role as the most influential part of the federal-reserve system -- apart from the matter of AIG's bailout -- deserves further congressional scrutiny. The New York Fed is in the hot seat for its decision in November 2008 to buy out, for about $30 billion, insurance contracts AIG sold on toxic debt securities to banks. Treasury Secretary Timothy Geithner was head of the New York Fed at the time of the AIG moves. The hearing revealed some of the inner workings of the New York Fed and the outsized role it plays in banking. This insight is especially valuable given that the New York Fed is a quasi-governmental institution that isn't subject to citizen intrusions such as freedom of information requests, unlike the Federal Reserve. This impenetrability comes in handy since the bank is the preferred vehicle for many of the Fed's bailout programs. It's as though the New York Fed was a black-ops outfit for the nation's central bank.