U.S. could lose triple-A credit rating

Signs are emerging that there is eroding confidence in the country's ability to maintain solid credit ratings, former Comptroller General David Walker writes. That instability would only worsen with costly health care reform or a failure by the government to rein in its budget process. "The U.S. government has had a triple-A credit rating since 1917, but it is unclear how long this will continue to be the case," Walker writes.

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http://www.ft.com/cms/s/0/5534bd04-3f27-11de-ae4f-00144feabdc0.html