Dr. Matt Fedoruk is Chief Science Officer at the U.S. Anti-Doping Agency (USADA). In this episode, he talks about the events leading up to the formation of USADA, common misconceptions about evidence in anti-doping rule violation cases, building an accredited anti-doping testing laboratory in Vancouver for the 2010 Winter Olympics and Paralympics, key anti-doping programs at USADA, challenges that accompany advances in anti-doping technology, and improving the science on deterring athletes from doping.