AUGUST 8, 2011, 2:42 P.M. ET  Treasury Prices Surge As Stocks Sell Off; 10-Yr Yield Lowest Since Jan '09 
 
 By Min Zeng 
 Of DOW JONES NEWSWIRES 
 NEW YORK (Dow Jones)--Investors continued to pile into the Treasury market for safety Monday and the huge buying sent benchmark yields to the lowest level since January 2009. 
 Buying accelerated in the late-afternoon as U.S. stocks extended a selloff. Shares of U.S. big banks tumbled, led by Bank of America and Citigroup, underscoring heightened anxiety about the global economic outlook.