U.S. AAA credit rating DOWNGRADED for first time in history after Obama's debt deal Unprecedented move will send shockwaves globally S&P cuts long-term credit rating from AAA to AA+ Borrowing costs for consumers and government to rise Comes after Obama signed bill to reduce fiscal deficit By Daily Mail Reporter Last updated at 1:08 PM on 6th August 2011 The U.S. has lost its top-notch AAA credit rating from Standard & Poor's in an unprecedented reversal of fortune for the world's largest economy. S&P cut the long-term U.S. credit rating by one notch to AA+ on concerns about the government's...