Stocks and Bonds: U.S. Stocks Tumble as Concern Over Europe���s Debt Crisis Heightens

Exxon Mobil down 1.1 percent at $80.67, and Schlumberger down 1.7 percent at $82.08. Citigroup was more than 2 percent lower at $40.16, while Bank of America was lower by 1.38 percent at $11.42. JPMorgan Chase fell more than 1.3 percent...