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Traders work on the floor at the New York Stock Exchange in New York, Wednesday. (AP Photo/Seth Wenig)

Glitch halts trading on NYSE; other exchanges unaffected (access required)

NEW YORK  — The New York Stock Exchange stopped trading in the late morning Wednesday because of a technical issue, though shares continued to trade on other exchanges. U.S. indexes sank amid growing concerns that trouble in China's markets could spread. KEEPING SCORE: The S&P 500 was down 23 points, or 1.1 percent, to 2,057 as ...