Higher-than-expected inflation numbers hit Wall Street hard, hammering...

Higher-than-expected inflation numbers hit Wall Street hard, hammering an already shaken market. The Dow Jones industrial average plunged 616.23, or 5.64%, to close at 10,307.32; Nasdaq plummeted 355.67, or 9.67%, to close at 3,321.11; and the S&P 500 fell 83.89, or 5.82%, to end the day at 1,356.62. Closing numbers are preliminary.