Railroads can’t file counterclaims against injured workers in Federal Employers Liability Act cases, a divided state appeals panel ruled last week.FELA, a century-old federal law meant to protect rail workers from dangerous work conditions, generally forbids railways from using contracts, rules, regulations and “devices” to exempt itself from liability or prohibit employees from talking about incidents.In a case of first impression, a majority of the 1st District Appellate Court held that counterclaims …