People should continue wearing masks on public transportation even though it’s no longer required by law, the Centers for Disease Control and Prevention said Tuesday. The federal government’s public transit mask mandate was scheduled to expire Tuesday, but a federal judge struck it down two weeks earlier instead. “CDC continues to recommend that all people — passengers and workers, alike — properly wear a well-fitting mask or respirator in indoor public transportation conveyances and transportation hubs to provide protection for themselves and other travelers in these high volume, mixed popula…