“I had six stress fractures in my tibia and three of them were almost full breaks through the bone, and I was being told by several doctors I would never dance again,” ballet star Misty Copeland said in 2015. But seven months later, with a plate in her leg, she was back on her toes. Tonight, Copeland will take her final bow with American Ballet Theatre. https://cbsn.ws/4oxzXPo | 60 Minutes