Traders work on the floor of the New York Stock Exchange, Thursday, June 21, 2012 in New York. A quiet start on Wall Street quickly turned into a rout Thursday as the bad news piled up including the Philadelphia branch of the Federal Reserve reporting a sharp contraction in manufacturing in the Northeast, the worst since August 2011. The Dow Jones industrial plunged 251 points, the second-biggest drop this year. (AP Photo/Mary Altaffer)
A trader works on the floor of the New York Stock Exchange, Thursday, June 21, 2012 in New York. A quiet start on Wall Street quickly turned into a rout Thursday as the bad news piled up includingthe Philadelphia branch of the Federal Reserve reporting a sharp contraction in manufacturing in the Northeast, the worst since August 2011. The Dow Jones industrial plunged 251 points, the second-biggest drop this year. (AP Photo/Mary Altaffer)
A trader works on the floor of the New York Stock Exchange, Thursday, June 21, 2012 in New York. A quiet start on Wall Street quickly turned into a rout Thursday as the bad news piled up including the Philadelphia branch of the Federal Reserve reporting a sharp contraction in manufacturing in the Northeast, the worst since August 2011. The Dow Jones industrial plunged 251 points, the second-biggest drop this year. (AP Photo/Mary Altaffer)
NEW YORK (AP) — Relentlessly gloomy reports about the health of the world economy rocked Wall Street on Thursday, stirring more worry about the stalled recovery and sending the stock market to its second-worst decline this year. The bad economic reports kept piling up: Manufacturing …