From NPR News in Washington, I'm Lakshmi Singh. Federal Reserve Chairman Ben Bernanke says the sharp government spending cuts set to take effect Friday will create a significant headwind for the economic recovery. Bernanke has delivered the Fed semi-annual report to the Senate Banking Committee. NPR's Craig Windham says Bernanke is defending the Fed's bond-buying program, which is aimed at keeping borrowing costs low. The Fed is buying about 85 billion dollars in treasury and mortgage back securities a month. Bernanke says that has been good for the economy. "Notably, keeping longer term interest rate slow has helped spark recovery in the housing market and led to increase sales and production of automobiles and other durable goods." Bernanke says while the Fed is trying to stimulate the economy, the upcoming across-the-board spending cuts known as the sequester would have the opposite effect, restraining growth. He says there’s a better way to bring down the deficit. "I think an appropriate balance would be to introduce these cuts more gradually and to compensate with larger and more sustained cuts in the longer run