1998 Annual Report on School Safety
Site offers suggestions for school to improve safety.
http://www.ed.gov/pubs/AnnSchoolRept98/index.html

1999 Annual Report on School Safety
Site presents summary information on problem behavior programs that have demonstrated effectiveness.
http://www.ed.gov/PDFDocs/InterimAR.pdf

Early Warning, Timely Response-A Guide to Safe Schools
A Guide to Safe Schools Identifies both anger and aggression as two of the many warning signs.
http://www.air-dc.org/cecp/guide/

Guide for Preventing and Responding to School Violence
This site includes prevention guidelines, threat assessment, crisis planning, legal considerations, media recomnmmendations, legislative issues, etc.
http://www.theiacp.org/pubinfo/pubs/pslc/svindex.htm

It's Our School--Some Practical Tools for School Safety
All encompassing guide includes "School Safety Plans: A Model Outline" from the Washington State Attorney General�s Office and "Planning and Preparedness Pays: Comprehensive All Hazard Planning Guide" from the Washington State Emergency Management Division.
http://www.atg.wa.gov/safetytools.shtml