went to moscow. and this is so fascinating, you went to visit the head of russia's anti-doping lab. you toured the lab with him, and i actually want to play this one moment for viewers, which is the moment he reveals russia's doping scheme in the stunning interview with you. here it is. >> does russia have a systematic statewide doping system in place to cheat the olympics? >> yes. >> were you the master mind of a statewide system that cheated the olympics? >> of course, yes. >> was putin aware of the existence of the russian doping system? >> yes. aware of my name. >> so i want to put aside what happened to him in a moment because it's important, but first, just this crucial point. putin knew, putin behind it. is anything going to stop russia from continuing to do this? >> well, i think you have to look at the history, and even where we are in regards to