Yeah, the 'Jihad' book is Joel Rosenberg. I started on it a few nights ago. Too early to have an opinion, but seems a bit cliche. We'll see.
I had a book at one time on psychopathology, too, that looked at the lack of conscience and their inability adequately form an empathic connection with people and situations. It wasn't so much that they refused to, but something with their brain development actually prevents it.