In 2006, the Federal Reserve was granted the power (via the Financial Services Regulatory Relief Act) to pay an interest rate on excess reserves, or money held by banks above the reserve requirement. Excess reserves have skyrocketed (see the difference between non-borrowed and required reserves at http://www.federalreserve.gov/releases/h3/current/) since the economic recovery, as banks would rather accept the rate on excess reserves than take the risk of lending. While there is support for this idea inside the FOMC (namely from St. Louis Fed President James Bullard), action is not being taken swiftly enough.
A temporary stay on the Fed's power to grant this interest rate would necessarily force banks to begin lending more money, thereby driving economic opportunities.