From Texas Standard:
Katie Meili, a 25-year-old from North Texas, took home the bronze medal this week in the 100-meter breaststroke at the Olympic Games in Rio de Janeiro.
But Meili might have placed even higher on the podium. Yulia Efimova of Russia won the silver medal. Efimova has failed multiple tests for performance-enhancing drugs. She was initially banned from the Olympics because of the failed tests, but the International Olympic Committee ultimately allowed her to compete.
Efimova's participation in the games, as with many Russian athletes, was controversial. Doping isn't new, It’s been around for decades, but advances in drug testing methods and technologies haven't kept illicit drugs away from elite athletics.