Contributors in psychiatry, psychology, and post-traumatic stress disorder summarize current understanding of the psychological, behavioral, and social responses to disaster and present a case for intensifying intervention efforts. They examine the impact of trauma from the cellular to the community level, look at the impact of traumatic stressors on children, and discuss psychological and community interventions following mass violence. Annotation (c)2003 Book News, Inc., Portland, OR (booknews.com).