On another cycling forum (French language) I visit, a Paris guy posted this message. I'm quickly translating:

"For the moment in France it's boiling big bubbles but we know little. Most of the cyclists here know very well that 98% of the racers dope and that those who are caught, it's because of the "soigneur"'s [team "nurse"] error. For us who have been in the cycling milieu for years (my great-uncle was a bike constructor and had a pro team), WE KNOW. Whatever the commentators say, we're not dupes. The dope in European cycling is at all levels, even in village crits where the price is a bunch of groceries from local shopkeepers, there are lots of them everywhere at the beginning and end of the season.

There is also doping in Sunday morning rides, to follow a group of younger guys who ride faster and further...

One must remember the heads of racers getting at the top of the "cols" (passes) thirty years ago, looking like agonizing old men, whereas today the champions climb with their mouth closed (they breathe through their ears maybe?)."