I plan to keep working until I can collect my full Social Security benefits. Or, at least until something I did 20 years ago comes back to ruin my career.

I know most of us are focused on quarantines, about catching the virus, or how to handle a house full of kids who are not in school. But I can’t help thinking that we have started to put an enormous importance on things that happened many, many years ago that most people would rather forget.

As the Democrats have been selecting their nominee for president, the opposition has dug up some pretty old footage of people like Bernie Sanders a...