Russian Sports Doping and the Rio Olympics

Russia's elite athletes are involved in alleged doping scandals in track and field — and at the last winter games in Sochi.

Russian Sports Minister Vitaly Mutko

In the past few days, Russia's Minister of Sport has apologized for one doping scandal and vehemently denied another. David Wallechinsky is President of the International Society of Olympics Historians. His books include the Complete Book of the Olympics.