Lance Armstrong was on top of the world. He’d won the coveted Tour de France seven times. He’d beaten cancer and had seen his charity, Livestrong, become an acclaimed source of help for cancer patients. But then the walls came tumbling down. It was revealed that Armstrong had led a doping program on his teams during his career. And, just like that, he was stripped of his Tour de France titles, he severed ties with Livestrong, and his name became synonymous with cheating and duplicity.