How Team U.S.A. weightlifter Olivia Reeves became a gold-medal favorite

Ever since women began competing in weightlifting in the Olympics, in the year 2000, only one American woman has won a gold medal.This year, there are hopes that might change.And many of those hopes rest on the (very strong) shoulders of a 21-year-old college student in Chattanooga, Tenn. named…