"The reaction to rating agency Standard & Poor's revision of the U.S. sovereign credit outlook to stable from negative gave stocks only a short-lived lift. The action put the likelihood of a near-term downgrade of the rating at "less than one in three."
What's 'near term'?
If it's 1 year, that puts it at 33%, but what happens over 3 years?
With the National Debt projected to exceed $20 Trillion in a little over 3 years, that's not a comforting thought, and what happens when all of the extra money supply starts circulating normally - look for massive Inflation.
The Debt Ratio (Debt as % of GDP) for 2008 was 69%.
Obama projects (2013 Budget) the Debt Ratio for 2016 to be 121%. That's the level where Greece fell off the cliff.