Miami-Dade and Hillsborough school districts defy governor's ban
                                
                                
                                    (Newser) -
                                    Two of Florida's biggest school districts have decided to join others that have defied Gov. Ron DeSantis and brought in mask mandates. In the Tampa-area Hillsborough County district, which has around 213,000 students, some 8,400 students and more than 300 teachers are in isolation after testing positive...