The 'insurmountable' weight of expectations on Simone Biles

In a stunning moment at the Tokyo Olympics this morning, American athlete Simone Biles — considered the top gymnast in the world and favored to bring home gold medals — withdrew from the team competition. Her decision to prioritize her mental health came after her performance on the vault. John Yang discusses the pressure on Biles with Angie Fifer, a former gymnast and track and field athlete.