Wall Street got off to a queasy start Tuesday but nudged into positive terrain by noon. The Dow Jones Industrial Average was up 21.76 points, or 0.20 percent, to 10,806.90. Nasdaq gained 11.60 points, or 0.49 percent, to reach 2,386.27. (X) (DKS) (AA) (AYE) (ATI) (AEO) (BK) (CNX) (FII) (HNZ) (KMT) (KOP) (PNC) (PPG) (WAB) (WCC)