Moody's Ratings on Friday announced a downgrade of the U.S. government's credit rating, moving it down a notch from the ratings agency's top tier amid concerns about the rising national debt, which c...

Moody’s for the first time in its history downgraded U.S. government bonds from the gold star rating of “AAA” to “AA1,” the silver medal equivalent.

Longer-dated Treasury yields gained while global stock indexes and the dollar eased on Monday amid concerns about a U.S. tax bill and the U.S. debt load and following Moody's downgrade of the U.S. sov...