The most commonly used psychiatric diagnoses for aggressive, angry or violent behavior are Oppositional Defiant Disorder, Attention-Deficit/Hyperactivity Disorder and Conduct Disorder (in children and adolescents), Psychotic Disorder, Bipolar Disorder, Antisocial, Borderline, Paranoid and Narcissistic Personality Disorder, Adjustment Disorder with Disturbance of Conduct, and Intermittent Explosive Disorder. This latter diagnosis is an impulse control disorder characterized by repeated “failure to resist aggressive impulses that result in serious assaultive acts or destruction of property.” Of all the DSM-IV-TR diagnoses, this one comes closest to accurately describing the escalating explosions of violence we are witnessing today. It is a classic anger disorder. According to a recent study by sociologist Ronald Kessler at Harvard Medical School, this anger disorder is on the rise, and may be present in more than fifteen million Americans. And this is only the proverbial tip of the iceberg.