After Simeoni testified against Ferrari for showing him how to use EPO, Armstrong called him a liar, and Simeoni on the advice of his lawyers sued Armstrong for defamation (remember, Simeoni had said nothing about Armstrong, who had chosen to leap to Ferrari's defence in order indirectly to defend himself - Armstrong had also consulted Ferrari). After the talking to he gave Simeoni, Armstrong returned to the peloton and made a zip motion across his lips. After the race, he is quoted as saying he had been 'protecting the interest of the peloton' by chasing Simeoni. Simeoni said that even if 90% of the peloton were against him he felt supported by 10%.
Omertà?
It's not attractive.