ISIS has mastered a crucial recruiting tactic no terrorist group has ever conquered
Snips: Jessica Stern and J.M. Berger wrote in their book, "ISIS: The State of Terror," that part of its quest to terrorize the world, ISIS has mastered an arena no terrorist group had conquered before — the burgeoning world of social media."
To further capitalize on this influx of foreigners, ISIS has released propaganda videos featuring foreign fighters who speak Western languages and can encourage others to come to Syria to wage violent jihad or help the caliphate in some other way.
