various ideas. >> you have done extensive reporting on this, traveling to syria, meeting with westerners. is this the kind of story you hear, you heard a lot? >> yeah, i mean, there's not really a one size fits all approach to radicalization. some young men are vulnerable, attracted to isis because they want a sense of belonging, a sense of meaning and purpose in their life. they want to be part of that brotherhood. other guys who maybe have more criminal backgrounds, street kids, they are attracted to the idea of making an impact, being able to make a mark, having power, getting to pose with heavy weapons. >> you were saying that often the parents of those kids wo have been in trouble in the past are pleased initially that their kids now seem pias, seem interested in a religion. >> exactly. initially, parents missed signs because they are glad their sons are no longer staying out all night, using bad language, smoking cigarettes, drinking alcohol, stealing cars, whatever it may be. there's an embracing of the