IOC mandates gene screening to protect women's sports International Olympic Committee President Kirsty Coventry announces a new policy requiring gene screening to ensure only biological females compete in women's sports, citing fairness. Payton McNabb reacts. NEW You can now listen to Fox News articles! Caster Semenya , a two-time Olympic gold medalist in the women’s 800-meter race, blasted the International Olympic Committee (IOC) over a new policy to ensure fairness for females competing at