Last weekend, in the immediate aftermath of the federal Centers for Disease Control and Prevention's May 13 announcement that fully vaccinated people can eschew masks and social distancing in most indoor and outdoor locations, we found that facial covering use in metro Denver remained surprisingly strong. In the three major Greeley stores we visited — a Home Depot, a King Soopers and a Walmart, all three of which allow fully vaccinated people to skip face coverings — mask usage ranged from spotty to rare. And we observed a fascinating racial component: People of color were much more likel...