If Federal Reserve Chairwoman Janet Yellen makes news during Senate testimony on Thursday, the blame should fall squarely on the weather. That’s because the second leg of her two-part semi-annual monetary policy testimony, which was originally scheduled for Feb. 13, was delayed by a snow storm in Washington and then a congressional recess. Since then, U.S. economic data that had already been weakening have shown further signs of strain, although many analysts still believe bad-weather effects might explain a good part of the slowdown. The softness has been broad-based, with retail sales falling 0.4% and industrial ... (full story)