WADA seems like an organisation in crisis. I agree that sports should be "pure" but the list is now so extensive that it`s fully possible to have a condition where you need one of the banned substances on the list in order to function.
For pool it`s a very limited list, but for some sports you really can`t live a normal life and use common medicines.
The harder WADA crack down, the bigger the problem of doping seems to be.
Sports on a elite level today really seems to be dependent on doping to some degree.
I just saw the Icarus documentary about rodtsjenkov and it was pretty crazy.