Michael Weiss, co-author of “ISIS: Inside the Army of Terror,” and The Atlantic’s Graeme Wood describe to Chris Matthews the propaganda strategy behind ISIS’s wave of violence.Feb. 19, 2015
UP NEXT
'The death of Baghdadi is the death of the image of ISIS'
05:22
The significance and impact of ISIS leader’s death
06:07
NYT: Custody of ISIS fighters in doubt
07:55
Turkey using militias to advance in Syria, including former Al Qaeda and ISIS members
02:36
Backlash against Trump for Syria withdrawal includes GOP
23:01
Pentagon report blames Trump administration for ISIS resurgence