

U.S. Federal Reserve chairman Ben Bernanke delivers a speech to the London School of Economics in London, Tuesday Jan. 13, 2009. Bernanke said Tuesday the stimulus package being crafted by President-elect Barack Obama and Congress could provide a "significant boost" to the sinking economy. But he warned that such a recovery won't last unless other steps are taken to stabilize the shaky financial system. (AP Photo/Matt Dunham)