Anti-doping chief on banning Lance Armstrong

Anti-doping chief on banning Lance Armstrong

August 24, 2012 4:43 PM

Scott Pelley speaks with Travis Tygart, head of the U.S. Anti-Doping Agency, about the agency's decision to strip Lance Armstrong of his seven Tour de France titles and to impose a lifetime ban on the sport for the cyclist.

Anti-doping head on Armstrong: "It's a sad day"
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