Melissa Harris-Perry 12/19/15

Would GOP candidates' ISIS strategies be effective?

With polls showing a majority of Americans declaring that terrorism is the most important issue facing the country, presidential candidates are reviving a familiar post-9/11 script. Malcolm Nance, Hillary Mann Leverett, Katrina Vanden Heuvel and Molly O'Toole join to discuss. ... more Duration: {{video.duration.momentjs}}