STOCK SHOCK: Jarrett Johnson (top) of Cohen Capital Group talks to fellow traders Monday at the New York Stock Exchange. Stocks plunged after S&P's credit warning. (Associated Press)

Photo by: Henny Ray Abrams

STOCK SHOCK: Jarrett Johnson (top) of Cohen Capital Group talks to fellow traders Monday at the New York Stock Exchange. Stocks plunged after S&P's credit warning. (Associated Press)