One of the top bobsledders in the world and leader of the four-man American team, Steven Holcomb had finished sixth in the 2006 Olympics and medaled in nearly every competition he entered. He was considered a strong gold contender for the 2010 Vancouver Olympic Winter Games. Talented, aggressive, and fearless, he was at the top of his game. But Steven Holcomb had a dangerous secret.Steven Holcomb was going blind.In the prime of his athletic career, he was diagnosed with ker...