falling about 4% on most averages on rising worries over the economic and military consequences of last week's terrorist attack. The Dow Industrials fell 382.92 points, or 4.4 percent, to 8376.21, while the Nasdaq Composite fell 56.87, or 3.7 percent, to 1470.93. The Dow is down 12.7 percent since reopening Monday, with the Nasdaq down 13.2 percent. Volumes were high on Thursday but not extraordinarily high like Wednesday and Monday. "Fears are overdone but downward momentum is too strong to say when the collapse will end. The market is more oversold than I ever member," said Larry Rice, chief investment officer at Josephthal & Co. Dealers and investment strategists said forced liquidation from margin calls continued to exaggerate losses as did quarter-end positioning among institutions. Military events continue to add uncertainty as does the extent of the economic damage.