There was a time when the notion of Tour de France cyclists using drugs and alcohol was as commonplace and taken for granted as rock musicians using drugs and alcohol.

Then came the War on Drugs and the unpleasant realization that drugs are drugs, whether they are being used for recreation or to enhance sporting performance.

And unlike going to a Grateful Dead concert, where nobody really cares how stoned you get, there is a lot of pressure on athletes to perform.