Floyd - I suspect his test was a true positive. If it was a one-time thing or a long term program we may never know. The way things were handled on both sides were so poorly done that it cast very long shadows in both directions and short of time travel or mind reading, doubt the complete truth will ever be fully known.

Armstrong - he should be tested in line with any other athlete he is in competition with. I don't know how they choose which riders to test in these unannounced tests. If it is random, then someone has stacked the odds against Armstrong. French anti-doping / cycling authorities - and likely members of the Government - (but perhaps not the French as a whole, as Botto pointed out) have a history of poorly run labs and mistakes, in addition to appearing to have an agenda against Armstrong. Those two combined would certainly make any athlete wary of people showing up unannounced to take your blood, etc - and make you quick to respond when they accuse you of "bad behavior" even after you complied with their requests once their authority had been confirmed.