My sister is a km from the top of the Aubisque and has a KoM cap from the caravan for me :)
The whole Schleck thing is regrettable, but that's two positive tests so fa - we're a long way from Festina. What's interesting is whenever people are caught at the Olympics no-one thinks it's the death of athletics or weightlifting or whatever or 'when will it end'.
Fact of the matter is, while people are paid for sport, and the incentive to cheat is there, it will never end. There will always be someone willing to take the risk. What cycling is doing right is testing really really well these days, and catching what is hopefully a large proportion of those willing to take the risk (compared to, say, tennis, which has pitiful testing, and hardly at all outside of tournaments).