This model was developed through a grant from the National Counterterrorism Innovation, Technology, and EducationCenter (NCITE), a Center of Excellence of the Department of Homeland Security (DHS) Security under Grant Award Number 20STTPC00001-01. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Department of Homeland Security or the George Washington University.