Psychologist Lt. Col. Dave Grossman -- On the Psychology of Killing 

Alan Gregg has an in-depth conversation with military psychologist Lt. Col. Dave Grossman about his book "On Killing: The Psychological Cost of Learning to Kill in War and Society." Grossman maintains that we inherently resist killing our own species and that most soldiers engaged in face-to-face combat find it difficult to kill. Many veterans are plagued with guilt about taking another man's life. He believes part of the reason for the rise in civilian murders is that children are desensitized to violence by associating vivid media and videogame depictions of intense human suffering with pleasure. (Originally aired by TVO on March 1996 and released freely to the public in April 2012).