Armstrong never tested positive... <snip>
And that's sort of what niggles. He would always say, "I've never tested +ve". Until recently he has (AFAIK) never said, "I never doped." and there is an important difference between the two.
He did say, in the last week or so when the comeback was being talked about, "I didn't dope in 2001 so why would I dope now." or words to that effect. My 1st reaction was huzzah, he's finally said (in a roundabout way), "I didn't dope.", but then I noticed that he hadn't said "1999 or 2000 " or even "I've never doped so why would I dope now."
I'd be very pleased if someone could turn up a quote were he says unequivocally, "I never doped."