Mayor Daley on Wednesday opened the door to contract set-asides for businesses owned by gays and lesbians--provided they can prove they were frozen out of city contracts because of past discrimination. Daley kept the volatile issue alive, one day after Chicago's first openly gay alderman took the first step toward a gay agenda that will start by extending ethics rules to the live-in partners of gay and lesbian city employees and could end with contract set-asides. "You have to look at it. You have to have an open mind. There's nothing wrong with that," the mayor said. Daley said he...