anchor: that was sean walker reported for moscow. let's stay with russia and the latest on the country's doping scandal. the report in the new york times newspaper says dozens of russian athletes who competed at the 2014 winter olympics were part of an extensive state run doping program. the director of the country's anti-doping laboratory at the time claims that tainted urine samples were exchanged during the games through wall for clean urine collected months earlier. as many as 130 urine samples were destroyed and doctors were fully aware and equip to aid in doping. kremlin has dismissed the claims, saying the allegations were unsubstantiated and slander by a defector. more on this, we speak with andy brown from sports integrity initiative. thank you for joining us. i like to ask you for your opinion of these latest claims. >> it's worrying. relatingims directly to sochi, and it's a cocktail of three anabolic steroids, coupled with alcohol, which they gave to athletes in the run-up to the london two dozen 12 olympics and all throu