Team USA's Caeleb Dressel wears a USA-branded face covering while waiting to receive his gold medal after the final of the men's 4x100m freestyle relay swimming event during the Tokyo Olympics at the Tokyo Aquatics Centre on Monday. TOKYO — When a U.S. athlete makes it onto the podium in an Olympic event, two things really catch the eye of people watching at home: the shiny medal around their neck and the unusual-looking mask on their face. The white mask emblazoned with "USA" in red letters is strikingly voluminous, jutting about an inch in front of the face. It also has a distinctive plea...