California Attorney General Kamala Harris, right, accompanied by Attorney General Eric Holder, speaks during a news conference at the Justice Department in Washington, Tuesday, Feb. 5,

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California Attorney General Kamala Harris, right, accompanied by Attorney General Eric Holder, speaks during a news conference at the Justice Department in Washington, Tuesday, Feb. 5, 2013. The U.S. government accused Standard & Poor's of inflating ratings on mortgage investments to boost its bottom line, taking aim at a key player in the run-up to the financial crisis. (AP Photo/Jacquelyn Martin) less