Fed's Yellen cites global risks but says U.S. should motor through

Tightening financial conditions driven by falling stock prices, uncertainty over China and a global reassessment of credit risk could throw the U.S. economy off track from an otherwise solid course, Federal Reserve Chair Janet Yellen said on Wednesday in prepared testimony to Congress. In testimony that combined a steady-as-she-goes account of Fed policy with an acknowledgement of intensifying risks, Yellen said there are good reasons to believe the United States will stay on a path of moderate