I am genuinely curious: What does S&P claim their credit rating reflects?<p>It is obvious that the US government will always be able to pay both interest and principal on treasury bonds, because they are the ones who run the monetary system: they are sovereign. There is no way that they could ever become unable to fulfil their contractual obligations. To believe that the US government may become unable to pay out US$ is as absurd as believing that Blizzard may become unable to pay out World of Warcraft in-game gold.<p>So again, what is it that S&P claims to be measuring?<p>There is a chance that the US government defaults voluntarily for political reasons, whatever those may be - is it that possibility that S&P claims has now increased? Or something else that I am missing?<p>The reporting reads as if the US government is subject to the inability to pay like some private borrower, or like non-sovereign countries like Greece. But that is not the case. So what gives?<p>Edit: This confirms my suspicions and also the sentiment voiced by the sibling comment: <a href="http://www.nytimes.com/roomfordebate/2011/04/18/is-anyone-listening-to-the-standard-poors/ignore-the-raters" rel="nofollow">http://www.nytimes.com/roomfordebate/2011/04/18/is-anyone-li...</a>