Mother of murdered journalist tells what she learned by meeting his ISIS killer

When Diane Foley meets the ISIS man who kept her son in 21 months of brutal captivity before beheading him, her family opposes the meeting. Diane Foley and bestselling author Colum McCann speak with Piya Chattopadhyay about the life and death of James Foley and the importance of listening to people you hate and who hate you.