Commentary The new federal anti-lynching bill that President Joe Biden proudly signed contains a joke, an irony, and a scheme. According to Biden, “No federal law expressly prohibited lynching until today.” Biden gives the impression that lynching has been legal all this while, until he finally sprang into action to make it illegal. Herein lies the joke. There hasn’t been a lynching in America in at least 40 years. This gruesome practice, once common in certain areas of the country, has virtually disappeared from American life. And this of course is a good thing. But it also raises the question, why outlaw something that isn’t actually happening? Consider a couple of other terrible practices that don’t seem to require new federal legislation. Witch burning was at one time common in certain parts of Europe, and of course in America we had the notorious Salem Witch Trials. Cannibalism, too, is an …