economic downgrade

In this Aug. 4, 2011 photo, a trader works on the floor of the New York Stock Exchange.  (credit: Jin Lee/AP)

Dow Closes Down 634 Points After Downgrade Of U.S. Credit Rating

The U.S. stock market joined a sell-off around the world Monday in the first trading since Standard & Poor’s downgraded American debt.

08/08/2011