As battles over anti-union bills continue in Michigan, Indiana and Wisconsin, Ohio may be the first one to actually pass legislation that limits collective bargaining rights for public employee unions. The Ohio Senate narrowly approved such a bill on Wednesday. It includes changes unveiled by its Republican authors earlier this week that reinstate collective-bargaining powers for the state’s more than 300,000 firefighters, police officers, teachers and other public workers, but only on the issues of wages, hours and certain terms and conditions