"The manifestations of hate are legion, but the hate process itself remains elusive. Limited research in this field precluded the development of a comprehensive hate model. Understanding hate groups is essential for the development and implementation of successful intervention strategies, which depend on an understanding of the hate process. The proposed hate model consists of seven stages, including how hate groups define themselves, how hate groups target their victims and taunt them with verbal insults and offensive gestures, and how hate groups attack their victims with or without weapons."
Federal Bureau of Investigation: http://www.fbi.gov/
FBI Law Enforcement Bulletin ( March 2003), v.72 no.3, p.1-8