Pot Calls The Kettle Black?

If the global Standard and Poor's Credit Rating Agency were a Pot, its' "AA+"
credit rating of the USA Government would be analogous to the old idiom in which the
Pot calls the Kettle black. See the link at http://en.wikipedia.org/wiki/Pot_calling_the_kettle_black
It's also likened to the giant credit rating agency putting on a red nose like mine.
They appear more clownish than yours truly when you consider their poor referee- calling on "Credit Debt Obligations(CDOs) .Read about it in black and white at
http://en.wikipedia.org/wiki/Collateralized_debt_obligation
You don't have to be an old hobo clown detective to know that the Credit Rating Agencies failed to make the right call about the sub prime mortgage crisis in 2007 and rated the "CDOs and other ABSs with the highest possible grade".
Are the credit rating giants blowing smoke so the consumers in the US and global economy cannot see Uncle Sam take a swing at them?