Sen. Elizabeth Warren, D-Mass., questions Federal Reserve Board Chairman Ben Bernanke during a Senate hearing last month. Senators from both ends of the political spectrum argue that financial reforms are insufficient to protect taxpayers from potential risks posed by large banks.
Federal Reserve Chairman Ben Bernanke testifies before the Senate Banking Committee in Washington last month. Some analysts wonder if he and other policymakers have kept interest rates too low for too long.
U.S. employers added 155,000 jobs in December, a steady gain that shows hiring held up during the tense negotiations to resolve the fiscal cliff. But the unemployment rate remained at 7.8 percent last month.