The Centers for Disease Control and Prevention (CDC) has relaxed its rules on wearing masks outside. This means that fully vaccinated Americans no longer need to cover their faces unless they are in a large group of strangers. Unvaccinated people can also go outdoors without masks in certain cases. The latest guideline is another strategically calibrated measure on the journey back to normalcy after the coronavirus epidemic, which has claimed the lives of over 570,000 people in the United States.