Federal charges against NFL quarterback Michael Vick provide gruesome details on how dog fights operate, and who takes part. Dog fights, once considered a sport, are now regarded as a federal offense in all 50 states. Vick Denies any connection with competitive dog fighting. Guests take us inside the underground dog fighting world.

George Dohrmann, reporter, Sports Illustrated

Mike Duffey, Pima County Sheriff's Department detective and co-chair of the Animal Cruelty Task Force

John Goodwin, deputy manager of the Animal Cruelty Campaign, Humane Society of the United States

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