'Enough is enough' for Lance Armstrong

Enough is Enough. That's what Lance Armstrong has finally declared after deciding NOT to fight charges of doping by the U.S. Anti doping agency. The 7 time Tour De France winner now looks likely to be stripped of his titles and be banned for life from competing. In a statement the 40 year old maintains his innocence and believes that the charges are nonsense. Al Jazeera's Richard Nicholson reports.