Russia's Minister of Sport, Vitaly Mutko, acknowledged serious mistakes in the management of sports federations and expressed regret over athletes deceiving the system, while denying government involvement in doping. Grigory Rodchenkov, former director of the Moscow lab, revealed a state-sponsored doping scheme involving federal security agents. The World Anti-Doping Agency announced an immediate investigation into new allegations related to doping at the 2014 Sochi Olympics following a CBS documentary.