I have worked with mental patients several times and got to know them well, as people. Some had various types of "psychopath" labels. Often this was qualified in various ways.
I'm ALSO familiar with the issues relating to combat.
This is not similar to so called post tramatic stress disorder, and the two should not be confused or considered similar.
2. Trauma sometimes results in "scars," which sometimes manifest as PTSD, or other psychological disorder.
3. If, for a particular person, combat is not in the least traumatic (not, he can deal with the trauma, it is not traumatic) then that person is most likely a psychopath or suffers from some other defect which has damaged his humanity. If Tom does, indeed, have combat experience, I'm sure he has met some of these folks, and, unless he himself is one (I certainly can't judge based on two posts) he was most likely very worried by his encounters with them.....
I started my comment with...
I must comment that although I follow your argument, and would not refute it as ocassionally happening, I will refute it in the general.
No more needs be said. Maybe one thing.
You seem to use a dictionary definition of psychopath to prove a point. As I noticed, there is incredible diversity in actual people diagnosed as and treated as psychopaths. What this means is that I can refute your argument in a backwards method, starting with the bell shaped curves in psychopathic behavior, then going to the single phenomena you claim.
Nonetheless, I know the point you are trying to make, which is along the lines of something like, uh, "killing people is bad and has bad karma" or something like that?