MY USA TODAY COLUMN: Coronavirus closings: There are substantial benefits to not dilly-dallying around. “In short, we face a variant of the old medical adage that in the early stage, diseases are easy to treat but hard to diagnose, while in the later stages they are easy to diagnose but hard to treat. Right now, things aren’t bad enough to make closing the obvious action. The trouble is, by the time things get that bad, it’ll be too late for closing to do as much good.”