Scores of bullying victims are bringing weapons to school, says new research offered in a presentation today. A recent study shows adolescents who are harassed in multiple ways most likely to carry gun or knife on campus, says the new study, "Exponential, Not Additive, Increase in Risk of Weapons Carrying by Adolescents Who Themselves Are Frequent and Recurrent Victims of Bullying." The abstract of the research is online. Bullying can take many forms. Students who have... (GunPolicy.org)