The Centers for Disease Control and Prevention eased its guidelines Tuesday on the wearing of masks outdoors. Fully vaccinated Americans no longer need to cover their faces anymore unless they are in a big crowd of strangers. The CDC says that fully vaccinated or not, people do not have to wear masks outdoors when they walk, bike, or run alone or with members of their household. They can also go maskless in small outdoor gatherings with fully vaccinated people. The CDC recommends that unvaccinated people should wear masks at outdoor gatherings that include other unvaccinated people.