They're not. Doping technology is just very advanced. Drug tests to designed to detect known substances and biochemical manipulations. read more
USADA only caught Lance Armstrong because of a whistleblower, and there are claims that most of the elites are doping. read more
USADA works with NGBs, event directors, and sport organizers around the country to create anti-doping programs and testing plans that are appropriate for sports based on their resources and anti-doping goals. read more
According to the list of sanctions on the United States Anti-Doping agency’s website, the agency has yet to ban an athlete for salbutamol use. The agency has handed out three public warnings to three different track and field athletes. read more