Insurer Anthem opens hole in Ohio ACA exchange choices

One of the nation's biggest health insurers says it will not return to Ohio's public insurance exchanges next year, a decision that could open more holes in the Affordable Care Act's increasingly thin system for helping people buy coverage.Indianapolis-based Anthem's decision could leave shoppers in 20 counties without an option for buying individual coverage on the exchange, unless another insurer steps in. The exchanges are the only place where people can use an income-based tax credit to help