LONDON, ENGLAND - OCTOBER 03: Travis T Tygart, Chief Executive of USADA talks to an audience including Edwin Moses, Colin Jackson, and Daley Thompson in the debating room during a Science and Ethics ... more 
LONDON, ENGLAND - OCTOBER 03: Travis T Tygart, Chief Executive of USADA talks to an audience including Edwin Moses, Colin Jackson, and Daley Thompson in the debating room during a Science and Ethics in Sport Symposium at County Hall on October 3, 2011 in London, England. (Photo by Paul Gilham/Getty Images for Laureus) less 
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Getty Images | Photo By Paul Gilham / Getty Images for Laureus
Mon, Oct 3, 2011 12:23 PM EDT