Anyone can criticize Armstrong for his lack of character, his lust for the yellow jersey, his willingness to lie, deceive, cheat, bully and revel in the glory that he robbed from those who truly deserved it.
If we refer to the ancient history of science and recent cold fusion claims by Pons and Fleischmann (1989), we see that we should not lack the character to tackle the certainties and defend the violent attacks from all sides.