Allan Meltzer, professor of political economy at Carnegie-Mellon University and the author of the most comprehensive history of the Fed, and John Taylor, atop Treasury official under George Bush both oppose expanding the powers of the Fed and putting it in charge of controlling systemic risk. Meltzer says the Fed exacerbated the crisis by keeping rates too low for too long, and did nothing to control systemic risk. He also says the in testimony to the House Financial Services Committtee, that the Fed has in its whole history never done well in controlling systemic risk. It has failed to see the storms coming. Kohn, vice chairman of the Fed, says the change is only incremental, as the Fed has asupervisorty role already. Taylor's view is that the Fed does best when its responsibilities are limited to its original role. A change would dilute its main mission of steering the economy and jeopardize its independence.