MOSCOW — Russia is for the first time conceding that its officials carried out one of the biggest conspiracies in sports history: a far-reaching doping operation that implicated scores of Russian athletes, tainting not just the 2014 Winter Olympics in Sochi but also the entire Olympic movement.
Over several days of interviews here with The New York Times, Russian officials said they no longer disputed a damning set of facts that detailed a doping program with few, if any, historical precedents.
