S&P: It was our duty to downgrade US

The top official behind Standard & Poor's historic decision on Friday to downgrade the United States' prized triple-A credit rating said it was his company's duty to make such a hard and controversial call.

S&P cut the long-term U.S. credit rating by one notch to AA-plus on concerns about the government's budget deficits and rising debt burden. The decision could eventually raise borrowing costs for the American government, companies and consumers.

"We take our responsibilities very seriously, and if at the end of our analysis the committee concludes that a rating isn't where we believe it should be, it's our duty to make that call," David Beers told Reuters in an interview.

S&P has been under a lot of fire from the Obama administration for basing its decision and analysis too much on the acrimonious debt-ceiling debate that led to an eleventh-hour agreement on Tuesday to avert a U.S. default.

Government sources have also accused the agency of making a $2 trillion error in its calculations about U.S. finances, and later removing that number from its estimates while sticking to its plan to cut the U.S. credit rating.

Beers, who is the head of sovereign ratings at S&P, acknowledged that the agency's decision was highly influenced by a change in Washington's "political dynamics" that hampered members of Congress from reaching a more comprehensive plan to cut the deficit.

"From the standpoint of fiscal policy, the process has weakened and became less predictable than it was," he said.

"That's the story around the difficulty highlighted in the debt-ceiling debate, cobbling together some type of fiscal policy choices."

Asked about news reports that there had been a back and forth between the agency and the government during the past 24 hours over the justification of the decision, S&P spokesman John Piecuch said the agency always gives a debt issuer the opportunity to review the announcement before it is made.

"They can go through it and look for numbers, look for calculations -- that is what happened," Piecuch said.

Any change in those calculations would have been taken into consideration by S&P's committee before its rating decision was made public, Beers said.

Beers said one contributing element to the decision was the downward revision of U.S. GDP numbers a week ago. The data showed that the US economy almost stalled in the first half of the year.

"The recession was deeper than what everybody thought a year ago and we think that this raises the possibility that the recovery will continue to be weak."

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