Wall Street suffers its worst two-day slide of the year as the global economy shows signs of struggle. The Dow lost 46 points, the S&P 500 gave up 9 and the Nasdaq slid 32. Some of the sell-off was follow-through from the day before. Minutes from the last Federal Reserve meeting showed policymakers worried about their pledge to spend $85 billion a month to buy debt until the jobless rate significantly falls. Dallas Fed President Richard Fisher hopes to bring some clarity.