For a decade, the South African athletics star Caster Semenya has been at the center of a controversy surrounding a high level of testosterone in her body and her right to compete as a female. What does the Semenya case mean to athletes?
U.S. gymnastics coach Larry Nassar abused at least 250 young women and girls before his crimes were exposed. Why was he allowed to continue offending for so long? And what can we learn from such cases?