In Tuesday morning trading, the Dow Jones industrial average dropped 90 points to 13,494.
The Nasdaq fell 45 points, or 1.5 percent, to 3,067.
The S&P 500 was down 12 points, or nearly 1 percent, to 1,444.
The LABJ Stock Index fell 2 points, or nearly 2 percent, to 139.
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