America, though undeserving, should remain a triple-A

Sir, Roger Altman in “Why America deserves to stay a triple A” August 4, argues as if a triple-A rating has something to do with a pure absolute and objective risk-free reality. Of course it hasn´t, and it can never thought have been meant so... except perhaps by some truly in the “In God we trust” minds. 

The reason why America, though quite undeserving, should remain a triple A is that if America is downgraded, all other countries would then also have to be downgraded, and the credit rating agencies would have to start adding letters to classify the bottom.