I think all of this is a load of horse manure. Someone has something over his head and gave him an option:
A. Tell the world your a liar and a cheater
B. We tell the world this other stuff that we have proof of
He got caught cheating and was stripped of his titles, so there was nothing left to reveal. His admission was to garner public sympathy and he lied because anyone who still believes him is a gullible fool who will believe anything - he's a compulsive liar. Everybody that had anything over him had already testified against him. The only conspiracy was Lance Armstrong's attempt to conceal his doping.
He should tell his lies in Prison. All of that money he got was under false pretenses. He is a jerk.
At the very least the US government agencies that sponsored him and his team should sue him for fraud. It's a clear cut case when he admitted to cheating.