New tactic forces out Iraqis who don't endorse radical agenda
                                
                                
                                    (Newser) -
                                    Sunni extremists burned houses in a mixed city 60 miles from Baghdad over the weekend, a new tactic in the campaign to drive out citizens who don't support a sectarian agenda. Attackers burned as many as 100 homes, both Sunni and Shiite, in an apparent effort to destroy mixed neighborhoods...