"Moody’s Investor Services downgraded the US Government’s credit rating from Aaa/negative to Aa1/stable on May 16th, reflecting accelerating deficit growth and associated borrowing requirements, a fiscal situation exacerbated by recently elevated borrowing costs.  Despite considerable attention being paid to federal spending cuts, Moody’s noted a lack of faith in the willingness of Congress to actually reduce the deficit, and US debt levels have now reached thresholds that are materially weaker than other Aaa-rated peers..."