CNN counterterror chief to ISIS : Terrorist threat is 'complicated ' Cornell says ISIS has recruited Paris children as young as 15 . Steinbach : CNN recruiting women 'more than we 've ever seen by a terrorist organization '
FBI counterterror chief to CNN : Terrorist threat is 'complicated ' Michael Steinbach says ISIS has recruited U.S. children as young as 15 . Steinbach : ISIS recruiting women 'more than we 've ever seen by a terrorist organization '