TV coverage of Tuesday's terrorist attacks may have kept investors from paying attention to mutual fund transactions. That was the conclusion of a spokesman at a large mutual fund family, backed up by published reports that call volume to fund companies was unusually low.

At Vanguard Group's three call centers, some workers were sent home early, a spokesman said. Calls at one center were off by as much as 50% late in the day, compared to normal peak daily volume of 100,000 calls.

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