The Monitor studies vengeance:

In the feelings survey, the punishers reported feeling worse than the non-punishers, but predicted they would have felt even worse had they not been given the opportunity to punish. The non-punishers said they thought they would feel better if they’d had that opportunity for revengeeven though the survey identified them as the happier group.

(Hat tip: Psychcentral. Photo: torture orcehstrator, David Addington by Melissa Golden/Getty.)

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