With teachers and vulnerable adults vaccinated, U.S. schools need to return to normalcy.

While Europe struggles to vaccinate its citizens, the United States is undertaking one of the most successful vaccination campaigns on the planet. In many states, everyone over 16 can now be vaccinated, which means all willing teachers and vulnerable adults — say, a grandparent living with a school-age child — are good to go. And, of course, children are at much less risk of severe disease or death than adults. This means we have to start thinking about how to transition from Covid-impoverished classrooms…