The return of sex testing in sport risks harming women athletes, not protecting them

The International Olympic Committee (IOC) has announced a new policy on the protection of the women’s category that will force thousands of elite women athletes from around the world to undergo genetic sex testing in order to compete.

Critics argue the policy is based on weak science and raises urgent and important questions about fairness and human rights. It requires athletes seeking to participate in the women’s category at IOC events, such as the Olympic Games and the Youth Olympic Games...