Conversation so far:
what percentage of tour de france cyclists dope
14 of the 25 most recent winners have either failed tests or have confessed to have used doping.
Which country is most culpable for doping?
Systematic doping in Russian sports has resulted in 43 Olympic medals being stripped from Russian athletes—the most of any country
Are the Russian athletes banned from competing?
Due to widespread doping violations, in 2019 the World Anti-Doping Agency banned Russia from all major sporting events for four years.
Was there a film about doping in Russia?
Icarus is a 2017 American documentary film by Bryan Fogel, which chronicles a major international doping scandal when he asks for the help of Grigory Rodchenkov.

Question: where is the second person now
Self-contained rewrite: Where's Grigory Rodchenkov now?