April 28 is Workers Memorial Day, commemorating those killed, sickened, or injured on the job. As part of a week of events, today the National Council for Occupational Safety and Health is releasing its “Dirty Dozen” report. Here are four of the employers COSH has picked out for the “Dirty Dozen” distinction in 2023 because they run unsafe workplaces, endangering workers and the public: Swissport…