S&P downgrades U.S. credit rating

The credit rating agency Standard & Poor's says it has downgraded the U.S. long-term sovereign credit rating to AA+ from its top rank of AAA. CNNMoney reports. FULL STORY -- S&P strips prized AAA status - U.S. credit rating downgraded - Who owns America? Hint: It's not China
Stocks: Worst week since financial crisis - Volatile Wall Street Ends the Day Mixed - nytimes