session. dr. anthony fauci says if we do the right things there won't be a major increase. >> right now we are in outbreak mode. 4 million new covid-19 cases reported in just the past four weeks. >> it could go either way, and it's up to us. >> reporter: so, this is an inflexion point as temperatures drop and millions of kids venture back inside classrooms. >> if we do things right, we hope that we don't see much increase at all. we've got to get the school system masked. >> reporter: but, remember, there are politicians and parents fighting that simple logic. >> you are all demonic entities. you are going to be taken down. >> you had your first warning and this is your last. she cannot speak anymore. >> reporter: meantime, nearly 100,000 americans are in the hospital fighting this virus. the vast majority unvaccinated.