“An ordinary person becomes a torturer with surprising ease. The hard part comes when it’s time to be human again,” neuroscientist Shane O’Mara writes in Aeon. “Once removed from the theatre of war and the camaraderie of the battalion, intense, enduring and disabling guilt, post-traumatic stress disorder, and substance abuse follow.”
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This documentary seems to suggest otherwise.
http://www.imdb.com/title/tt2375605/?ref_=nv_sr_1
Those who were involved in the torture actually became ‘respected’ members of their community, and seemed to lack any real insight into what they had been involved in. Until they made this documentary of course, which is possibly the most powerful aspect of it.