is not a breeding ground, but it is a diaspora where this resides. you will get clusters out of canada australia, and europe and france and america as well. >> there are report has the teens may have been inspired or radicalized by a teacher. is this common? >> well, it is not uncommon for a professor or a self-professed scholar or charismatic scholar. >> and thank you. we have learned the real name of jihadi john who has been shown in isis videos showing beheadings.