Everyone uses scientific studies, and explain to me exactly how Lance used the scientific studies.
The study found that 21% of all of Great Britain's athletes had thyroid issues and we are only talking about runners, so why would other endurance athletes matter? When doing a study you want to eliminate as many other factors as possible and if that means eliminating another sport when your sample size with runners is already large enough, what is the point?
Due to the fact of medical advancements we have been able to realize that thyroid issues exist.
Where are your scientific studies.
The east Africans (to the best of my knowledge) are not subject to the same testing western athletes are, therefore making it much easier to dope. Who cares or even knows if Alberto is gaining an advantage within the rules to compete with the East Africans (or as you put it, a legal doping program), go cry about it, USA distance running would be nowhere without him. If the rules say you can do something to help performance you would be an idiot and a terrible coach not to use it, especially when as an athlete, maximizing career earnings is important because you only have 20 or so years at the absolute most to make all of your money.
You make a good point at the end, the topic should be revisited and the rules should be rewritten or at the very least clarified down to the point where your average 5th grader coups interpret them correctly so that there is absolutely no gray area.