The head of the U.S Anti-doping Agency, Travis Tygart, the man who spent years investigating Lance Armstrong has told CBS news that Armstrong lied about his doping in his interview with Oprah Winfrey. The same interview that was advertised as no holds barred, Lance Armstrong saying he was telling the full truth. The interview where Armstrong repeatedly said he was coming clean about his use of banned substances.

Well now, Tygart, he is the guy whose damning report about Armstrong's doping led to the cyclist being stripped of his titles and banned from the sport for life. Tygart also told CBS news, he's offered Armstrong a deadline, February 6th to cooperate fully and totally truthfully with USADA in exchange for a possible lessening of his lifetime ban from sports. Join me now is Juliet Macur, sports reporter for the "New York Times", also Betsy Andreu, the wife of Frankie Andreu, a former teammate of Armstrong.

Betsy, as you've heard the head of USADA, Travis Tygart is telling Scott, telling on "60 minutes" that Lance Armstrong lies to Oprah Winfrey, particularly about his 2009-2010 attempt at the Tour De France. Lance Armstrong said, also that he only used a little bit of EPO previously. Travis Tygart said that is absolutely not ture and that, also, Lance Armstrong had claimed he didn't offer USADA, or no one he knew offered USADA. A 250,000-dollar donation amid lingering questioins about whether he was doping or not. And he didn't pressure teammates to dop their blood, Travis Tygart says all of that is not true, that he did pressure teammates that a lieutenant of his did offer a donation that he was doping 2009-2010, and that he pressured teammates, what's your reactions to what Travis Tygart has said?

"Well, I think that, remember, in the interview with Oprah, Lance said if he could go back to June when USADA reached out to him, he said he would do anything to have that day back and accept his offer. Despite trying to bankrupt USADA and destroy them. USADA has graciously given Lance another opportunity to have that day back. And if Lance is truly sorrow, he is going to be truthful and he is going to help clean up the sport of cycling and tell the truth, no holds barred."

I want to play just some of what Travis Tygart has told "60 minutes", this is the first time we're going to see this clips, take a look