John A. Sokolowski, PHD, is Executive Director of the Virginia Modeling, Analysis, and Simulation Center (VMASC) at Old Dominion University, where he is also Associate Professor of Modeling and Simulation Engineering. He is the coeditor of Principles of Modeling and Simulation: A Multidisciplinary Approach, Modeling and Simulation Fundamentals: Theoretical Underpinnings and Practical Domains, and Modeling and Simulation in the Medical and Health Sciences and coauthor of Modeling and Simulation for Analyzing Global Events, all published by Wiley.Catherine M. Banks, PHD, is Research Associate Professor at VMASC. She is the coeditor of Principles of Modeling and Simulation: A Multidisciplinary Approach, Modeling and Simulation Fundamentals: Theoretical Underpinnings and Practical Domains, and Modeling and Simulation in the Medical and Health Sciences and coauthor of Modeling and Simulation for Analyzing Global Events, all published by Wiley.