Wellcome.
It's a case study about the behavior of people in their social groups, family, religion and country. When i see here "the self proclamated bodyguards" in this community, of course i remember this case study. It's always present in my life and when i interact with some group of people. We can defend in what we believe, but we must respect others ways of thinking. But when someone feel is the "keeper" of one idea and must do what is necessary do defend, it's when i remember the "bodyguards" of "the wave" or "nacional socialism (nazi)" or some kind of sect or whatever.