The Iraqi spy who infiltrated ISIS

Capt. Harith al-Sudani, a member of the Iraqi counterterrorism unit known as the Falcon Intelligence Cell, had a stunning record. While undercover, he passed along information that foiled 30 vehicle-bomb attacks and 18 suicide bombers before he died. The World's Carol Hills talks to The New York Times Baghdad Bureau Chief Margaret Coker about Sudani and the Falcon Intelligence Cell.