Markets
Video: Dow flips, then trips over 13K mark Add to ...
Blue chips touch 13,000 for first time since Lehman crisis; Retailers posting profit gains but Wal-Mart disappoints; Barnes and Noble intros Nook tablet; Oil nears $106.
Markets
Blue chips touch 13,000 for first time since Lehman crisis; Retailers posting profit gains but Wal-Mart disappoints; Barnes and Noble intros Nook tablet; Oil nears $106.