This coronavirus is a gigantic teachable moment. It’s teaching everybody a whole lot of things if they would just take the time to learn it — and the biggest thing, the absolute biggest thing that you have the opportunity to learn: How in the world can anybody sane want to keep this economy shut down? How can anybody sane be anything less than scared and outraged and mortified that 22 million people have been thrown out of work over something that may end up killing fewer than 50,000 people? It is unprecedented. And yet there are people who want to...