A healthy, civilized society can absorb some anger and dysfunction, as a healthy immune system can absorb some disease. But a massive buildup of anger and mean-spiritedness bombarding our social system day in and day out in millions upon millions of individual doses overwhelms our societal defenses. Medicine does little good in the absence of a healthy immune system. Likewise police and other institutional efforts to counter violence do little good, ultimately, in the absence of our individual efforts to deal with it. Violence is routed out of the world only by being routed out of our minds. Hatred is diseased thinking. Just as a cancer cell was a healthy cell that then transformed, so is hatred, love gone wrong.