Armstrong still has questions to answer

The prospect of co-operation between Lance Armstrong and anti-doping authorities appears remote despite the disgraced cyclist’s long-awaited confession to the use of performance-enhancing drugs.

After years of denials, Armstrong used a television interview with Oprah Winfrey to admit to doping during all seven of his Tour de France victories. He was stripped of all results from August 1, 1998 and banned from sport for life.