Wall Street shares slump as S&P downgrades US debt outlook | Business | The Guardian

Wall Street shares slump as S&P downgrades US debt outlook | Business | The Guardian: "In a move seen by Wall Street as a 'shot across the bows' of bickering politicians in Washington, Standard and Poor's (S&P) said it was cutting the outlook on the US's long-term rating from stable to negative for the first time since the attack on Pearl Harbor 70 years ago."