Punk rock legend Henry Rollins, prone to his own violent behavior, hosts a television show that investigates the origins of the short fuse. In "Explorer: Born To Rage," Rollins and a diverse group of men agree to be tested for what is called "the Warrior Gene."
Scientists believe if the gene is non-functioning in men, they may be more prone to violent behavior. "Born To Rage" airs at 9pm ET Tuesday on the National Geographic Channel.
This segment aired on December 13, 2010.