"WADA is now aware of at least three cases where athletes who had committed serious anti-doping rule violations were allowed to continue to compete for years while they acted as undercover agents for USADA, without it notifying WADA and without there being any provision allowing such a practice under the (global) code or USADA's own rules," WADA said in a statement to Reuters.
The global agency said the three athletes have since retired but declined to name them, citing security concerns in case they faced retaliation. It issued the statement after Reuters asked if it was aware of the practice, having seen speculation about it by sports fans on social media.
The U.S. agency has defended letting drug rule violators compete so they could act as undercover informants, saying in one case such assistance had provided intelligence to a U.S. federal law enforcement investigation into a human and drug trafficking scheme.
Drug testers having an informant program is crazy.