NEW YORK, NY - APRIL 18: Traders work on the floor on the New York Stock Exchange on April 18, 2011 in New York City. Following news that Standard and Poor's had cut its long-term outlook on U.S. ... more 
NEW YORK, NY - APRIL 18: Traders work on the floor on the New York Stock Exchange on April 18, 2011 in New York City. Following news that Standard and Poor's had cut its long-term outlook on U.S. debt to negative, the Dow Jones industrial average (INDU) fell 180 points in afternoon trading, settling at the close down 140 points. (Photo by Spencer Platt/Getty Images) less 
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Getty Images | Photo By Spencer Platt / Getty Images
Mon, Apr 18, 2011 4:58 PM EDT