Shawn Johnson would never put her daughter’s life in the hands of USA Gymnastics, despite her admiration for the sport, the former Olympian seethed in a five-minute video posted on her YouTube channel Monday. “USA Gymnastics has failed their athletes so terribly,” Johnson said. “I think the fact that any of this ever happened shows that USA Gymnastics has failed as a governing body to protect the athletes it supports and claims to care about.” Johnson, 26, who won the gold medal in the balance beam competition during the 2008 Beijing games, in addition to silver medals in floor exercises,...