News In Depth
Armstrong admission 'right step'
The head of the US Anti-Doping Agency said Lance Armstrong's admission was "a small step in the right direction".
Travis Tygart, the boss of the organisation that brought charges against the American cyclist, said in a statement: "Tonight, Lance Armstrong finally acknowledged that his cycling career was built on a powerful combination of doping and deceit.
"His admission that he doped throughout his career is a small step in the right direction.
"But if he is sincere in his desire to correct his past mistakes, he will testify under oath about the full extent of his doping activities."
Former British Olympic cyclist Nicole Cooke said she felt the situation appeared "staged".
She told BBC Breakfast: "I think that we really need to get a proper investigation now that Lance is saying these things. It has to be heard in front of law to actually get to the bottom of this."
Asked if she thought people were told the truth, Cooke, who won gold in Beijing in 2008, said: "I think we had some truth from Lance, but he was very guarded about certain things.
"I think there is still more to come out, I think we do need to hear names now... It is not just Lance by himself.
"There are doctors supplying him and people around him helping him, and we need to get into more than just the one athlete."