No disrespect, but there's a very big distinction between the
kind of allegations labelled against Landis and Armstrong -
Armstrong was never tested positive in the
immediate aftermath of the any stage of the Tour. The remotest
allegation against him came years after the
alleged event was supposed to have taken place. Landis, on the
other hand, was tested positive right after he won the Tour de
France - I mean, it's not rocket science to figure the allegations
against Armstrong were remotely weak and feeble at best and
ludicrous at worst; as opposed to Landis' testing positive in the
immediate aftermath of the test(the test results - A sample, at
least - were released less than a week after Stage 17).
That said, while I'm not going to be drawn into a debate with
regards to the integrity of those conducting the doping tests, I
think events like that do reaffirm the integrity of other top
athletes(in other sports) even more - think along the lines of the
Roger Federers and Tiger Woods... 
