S&P Downgrades United States

(Reuters) - The United States lost its top-tier AAA credit rating from Standard & Poor's on Friday, a move that will affect the country's borrowing costs and investor opinion of U.S. assets. Here is a Q+A on what the downgrade means for investors, consumers and to the country.

http://www.reuters.com/article/2011/08/07/us-usa-rating-sp-idUSTRE7760I520110807