Bissell, PhD, Richard A., Andrew Bumbak, MS, Matthew Levy, DO, MS, and Patrick Echebi, MD, MS. 2009. “Long-Term Global Threat Assessment: Challenging New Roles for Emergency Managers”. Journal of Emergency Management 7 (1). Weston, MA, USA:19-37. https://doi.org/10.5055/jem.2009.0084.