Interesting commentary here -
http://finance.yahoo.com/blogs/breakout/u-gets-downgrade-deserves-133206142.html
One of the comments: "One Nations, underwater"
With respect to the subprime junk (MBSs and CDOs) that was rated by Moody's, S&P and Fitch (ratings require two of the agencies) as AAA, that wasn't incompetence as much as negligence, if not downright fraud. However, they were offering an opinion, which is apparently protected by the first amendment, and apparently not an objective assessment based on any thorough analysis. Or they simply took the money (effectively a bribe or kickback) and gave undeserved ratings.
The subprime mortgages were generated by unregulated mortgage originators, some of which become subsidiaries of the big banks or Wall Street investment firms. Those subprime mortgages were not guaranteed by the Federal government.
Countrywide had a pipeline to Fannie Mae. Fannie Mae and Freddie Mac contributed to the housing bubble, but they weren't the whole story. There was widespread fraud among primary mortgage company and complicity on the part of Wall Street, the financial industry and the ratings agencies, as well as regulators who didn't regulate.
Read Gretchen Morgenson's and Joshua Rosner's
Reckless Endangerment.
http://www.nytimes.com/2011/05/29/b...-by-gretchen-morgenson-and-joshua-rosner.html
S&P was generous. The US credit rating should probably be AA- or less.
At $14 trillion in debt, it would take 140 years to pay off the debt at $100 billion/yr. Actually the payments would be more, so the debt could be paid down faster, although not as quickly if interest rates rise considerably. On the other hand, the US could default on some or all of the debt.