crowded restaurants, schools, and sporting events, even though they lack the advanced air filtration systems that you find on planes. but the surgeon general says public transit is different. airplanes and buses and trains are for unique settings because we bring a lot of people together in a closed setting for a long period of time. and not everyone has the option to not travel. and, bret, several major universities, including georgetown american and johns hopkins have reinstituted their indoor mask mandates. and the city of philadelphia plans to do the same this coming monday. back to you. bret: jonathan serrie, live in atlanta. home to the y dz cdc. jonathan, thank you. the illegal immigration crisis has come to the nation s capital tonight. it s a move the white house refers to as a publicity stunt. lucas tomlinson shows us this evening from washington. good evening, lucas. good evening, bret. the first bus load of migrants from texas migrants arrived here