Click on the title to this post to see a very interesting video about operating a cult. While watching this video, I was wondering how many of these tactics were used by radical Islamic terrorist groups.
Certainly you can see some of the group process of indoctrination in their recruiting techniques. Exceptions might be in demonizing the past and isolation from family. Although certainly Zarqawi had those. Often terrorists will talk about their earlier lives of drinking and using drugs. But not all are isolated from their families.