CHICAGO The Chicago Sun-Times is turning left. The tabloid that shifted toward political conservatism under the brief ownership of Rupert Murdoch more than two decades ago now says that it is "rethinking our stance on several issues, including the most pressing issue facing Americans today: Bush's war in Iraq." Under marching orders from Publisher John Cruickshank and Editor in Chief Michael Cooke, new Editorial Page Editor Cheryl L. Reed introduced a new Commentary section Tuesday with a promise to turn the tabloid back into the liberal-leaning paper it was for decades before the Reagan administration. "We are returning to our...