Mubin Shaikh: Undercover Jihadi

At the age of 19, Mubin Shaikh, born and raised in Canada, travelled to Syria to study militant jihadism. He later renounced his jihadist beliefs and volunteered at the Canadian Security Intelligence Service (CSIS) where he infiltrated the "Toronto 18," Canada's largest domestic terrorism case. Mubin sits down with Steve Paikin to discuss his book, "Undercover Jihadi: Inside the Toronto 18 Al Qaeda Inspired, Homegrown Terrorism in the West."