Lance Armstrong's lawyer brings a halt to an interview with BBC Radio 5 live's Garry Richardson when the subject turns to lie detectors.
Sportsweek presenter Richardson suggests Armstrong could clear his name by taking a lie detector test and, while Tim Herman refuses to rule out the possibility, he calls time on the interview insisting he "needs to run".
Armstrong has been banned for life and stripped of the seven Tour de France titles he won between 1999-2005 after 26 witnesses, including 11 former team-mates, provided evidence to Usada against him.
BBC Radio 5 live Sport will look at the Lance Armstrong saga in a special programme on Monday at 19:00 BST. "Peddlers: Cycling's Dirty Truth" includes interviews with Armstrong's former team-mate Tyler Hamilton, former Wada head Dick Pound, and British cyclist David Millar who was banned for two years after admitting taking performance-enhancing drugs.