Each victim of suicide gives his act a personal stamp which expresses his temperament, the special conditions in which he is involved, and which, consequently, cannot be explained by the social and general causes of the phenomenon.
Men and women who have served in harm's way experience higher rates of divorce and suicide. Many battle the debilitating effects and stigma associated with Post Traumatic Stress Disorder.
The way the terrorist is trained to operate, especially the suicide terrorists, makes punishment and the threat of punishment far less valuable to those who would prevent the crime.
The thought of making a movie in which the monsters were the good guys was just financial suicide.