September 11, 2001: A new violence?

Although it has experienced catastrophes far more destructive, the collective unconscious received the image of the destruction of the Twin Towers as a tremendous shock. Is the use of the image as weapon responsible for the feeling of that we were discovering a new form of violence ? What conclusions can we draw from the experience ? How can we relate it to the violence we experience in everyday life and work ? What conclusions can we draw from it to improve our clinical practice ?