Did Lance Armstrong cheat to win seven Tour de France titles by using performance enhancing drugs...that's the question at the heart of the controversy?
The bombshell interview aired on 60 Minutes last night.
In it Tyler Hamilton tells Pelley that he not only used Performance enhancing drugs, but that he also witnessed Armstrong use performance enhancing drugs on many occasions, including in 1999 when Armstrong, according to Hamilton, used EPO to win the first of his seven Tour de France victories.
"There was EPO...testosterone...a blood transfusion," Hamilton goes on to tell Pelley in the interview below.
Hamilton's revelations come a year after Floyd Landis, another Armstrong teammate also alleged that Armstrong used performance enhancing drugs to win the Tour de France.
"20+ year career. 500 drug controls worldwide, in and out of competition. Never a failed test. I rest my case," Armstrong tweeted.
You can watch part two below: