After creating new money at ablistering pace to try and slow down a precipitate downturn, and getting interest rates on Treasuries to a negative interest rate, (in effect people paying the Treasury to park money there), the Federal Reserve will now turn to quantitiative easing. The speed with which this has happened is shown by the fact that the Fed's balance sheet has gone fro $900 billion in September 2008 to just over $2 trillion by December 12, 2008. Till Septemeber 2008 the Fed had financed its lending to banks and other financial institutions by lending with its existing reserves, mostly Treasuy securities, by exchanging its cash or Treasury securties for hard to sell securities. Analysts fear unintended consequences from the kind of quantitative easing that the Fed will now have left by way of tools to address the crisis as the Fed funds rate is now close to zero.