>> they want killing machines, that's why you see them, you know, doing these videos and making kids watch these videos and making kids commit the crimes and kill because they are trying to establish a new generation of killers. >> it's the gang mentality. >> the gang idea is important because isis uses it to manipulate kids. a lot of the propaganda mixes the violence with scenes of camaraderie, friendship, the people in isis videos seem to be saying we did not belong where we were, but now we have found a home. a powerful message to the millions of unemployed, disconnected young muslims across the middle east. and even in countries like france and germany. >> i'm your brother in islam here in syria. i originally come from canada. >> i'm thinking i'm still dreaming. i'm feeling like i'm still dreaming. i'm feeling like i'm in the dream world. you have to be here to understand what i'm saying.