NEW YORK Nov 27 U.S. stocks opened slightly lower on as worry over the threat to the economy posed by the "fiscal cliff" offset optimism from a deal to ease Greece's debt burden.
The Dow Jones industrial average dropped 33.02 points, or 0.25 percent, to 12,934.35. The Standard & Poor's 500 Index shed 2.58 points, or 0.18 percent, to 1,403.71. The Nasdaq Composite Index lost 4.07 points, or 0.14 percent, to 2,972.71.
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