This presentation offers information on emergency management during mass gatherings. "The U. S. Department of Homeland Security (DHS) has identified venues of mass gatherings, including sport stadiums and arenas, as potential targets. DHS emphasizes an all-hazards approach relative to disaster preparedness and response. This includes any natural or human-made hazard."
U.S. Department of Education's Readiness and Emergency Management for Schools: http://rems.ed.gov/
Emergency Management in Higher Education MeetingDepartment of Education. San Antonio, TX. December 9-10, 2009