National Public Radio was in a frenzy the other morning but it felt like the movie Groundhog Day: they were spreading tremendous alarm about the rise of Covid cases. We have to stop the spread, the announcer said, and that’s why masks are coming back to classrooms. However, they added, relief is on the way in the form of a new vaccine. Rinse, repeat — as the shampoo bottles say. This line of thinking — stop the spread to reduce strain on hospitals, mask up, and so on — is being echoed by all major media organs. Leading the way...