The latest revelations about Lance Armstrong's use of performance-enhancing drugs have been a major blow to the world of professional cycling. But when it comes to sports, Armstrong is just one of many superstar athletes to fall from his pedestal. Think Barry Bonds in baseball and Marion Jones in track. Clinical psychologist Stanley Teitelbaum is the author of “Athletes Who Indulge Their Dark Side.”  He speaks with Ryan Warner about the mindset that allows these athletes to shirk the rules and then lie about what they've done.  

[Photo: Wikimedia User H-stt]