The former head of the Russian anti-doping agency, Grigory Rodchenkov, is the main 'informant' of the World Anti-Doping Agency (WADA), as it pertains to the unsubstantiated disqualification of Russian athletes from the Olympic Games 2018.
In this outtake, President Putin explains that US special services are behind the libel of Russian athletes - and of course, it all has to do with geopolitics. Russia is paying the price for being successful in Syria at the upcoming Olympic Games. Doping has nothing to do with it.
Rodchenkov is a 'whistle blower' on Russia's "state doping system" - whose mental health issues are widely questioned, criminal record well-publicised, as well as the presence of a financial motive behind the saga.