Vengeance Has a Gene, Scientists Say

"A team of Swiss scientists finds the desire for retribution against rule breakers has a deep-seeded, biological explanation. Punishing scofflaws activates the same pleasure center of the brain involved in recreational drug use and falling in love. NPR's Jon Hamilton reports on the study, which appears in this week's issue of the journal Science."

From NPR's All Things Considered, Thursday , August 26, 2004