Amid concerns about a debt crisis in Europe and U.S. interest-rate policy, the Dow Jones industrial average closed below 10,000 for the first time since Nov. 4. The Dow industrials were down 103.69 points, or 1 percent, at 9,908.54 at the closing bell. The Dow is now down 7.6 percent from its 15-month high on January 19. "This is the first time in three months that I think we've moved into a lower trading range," said portfolio manager Uri Landesman, of ING Investment Management. "Clearly, the sovereign-debt worries are first and foremost for the market right now. We're going to need some more clarity on that before we establish a new trend."