Mark Johnson\xa0has been around the endurance community as a participant and as a reporter and photographer.
He shares with The Nation his new book,\xa0"Spitting in the Soup - Inside the Dirty Game of Doping in Sports".
In this book, Mark teaches us about the history of performance enhancing drugs in sports. \xa0Doping has been around for a long time, for many reasons, but only recently banned. \xa0Take a listen to this podcast and then go read the book. \xa0It will give you a much more informed perspective about drugs in sports.