Abu Ghraib and Human Behavior

With the usage of "enhanced" interrogation techniques, Abu Ghraib could be seen by many around the world, as a staggering, and otherwise horrifying peek into the realm of the "group" effect on human behavior. From this, we can surmise that, those soldiers that participated in the torture and humiliation of Iraqi denizens, were most likely, ordinary, run of the mill people. This, creates the idea that, anyone can be susceptible to the manipulation of authority, mainly due to the power that is exerted in a hierarchical system. A parallel can be drawn from, the semantics and facets of group behavior, to that of anarchist thought and its rationalization. Anarchism was created as a decentralized, and otherwise vastly human look into political thought. This stressed the idea that man must not pose authority over man. This, is in direct discordance with the "group effect", used on individuals within society. Looking into the psychological effect of large groups and hierarchical standards, shows me, just how powerful and brooding groups can be when their actions are reflected into society. What can be gained from this? A fear or otherwise acknowledgement on how group behavior affects society; how must we really know what groups can do to us, if we have been living in a society, that stresses the idea of groups and "order", for its own self-benefit?