In God's Name - An American leader of an ISIS cell tells Scott Pelley how videos of the dead Anwar al-Awlaki persuaded him to recruit for ISIS on American soil. A 21-year-old Minneapolis man pleaded guilty to conspiring to provide material support (fighters) to ISIS tells Scott Pelley how he was radicalized by the Internet videos of the dead American al Qaeda cleric Anwar al-Awlaki. Speaking in his first interview, Abdirizak Warsame takes responsibility for his actions and the blame for the deaths of friends he helped send to fight in Syria.The Pot Vote - Governor John Hickenlooper of Colorado, where recreational pot is legal, urges caution to states voting on it because there's not enough data. Colorado Governor John Hickenlooper urges caution to the five states voting on legalizing recreational pot next month. There still isn't enough reliable information on the drug's impact, especially on drivers and teenagers, he tells Dr. Jon LaPook. Dr. LaPook went to Pueblo, Colorado -- a town where pot is produced and sold.The Music of Zomba Prison - Beautiful music created by inmates and their guards offers happiness and hope behind prison walls. Anderson Cooper's report from Malawi, Africa.