Gary Gordon is Senior Adjunct Professor at the University of Massachusetts Lowell. Previously he held positions as a railroad engineering officer, U.S. Army transportation officer, U.S. Government transportation security director and transportation operations, infrastructure and security consultant. He is co-author, with Richard Young, of Railway Security: Protecting Against Manmade and Natural Disasters, on the Editorial Board of the Journal of Transportation Security and a member of the Society of American Military Engineers’ Resilience Community of Interest. His work has been published in The Military Engineer, Transportation Research Record of the Transportation Research Board, Journal of Emergency Management, and Encyclopedia of Security and Emergency Management. Richard Young is Distinguished Professor of Supply Chain Management at Pennsylvania State University. Previously he held corporate supply chain management positions and was as consultant for a wide range of transportation and industrial firms. He is on the editorial boards of several supply chain journals, a Fulbright German Research Scholar, and received the Distinguished Educator Award of the National Defense Transportation Association. His work has been published in Journal of Transportation Security, Transportation Journal, International Journal of Physical Distribution and Logistics Management, Journal of Supply Chain Management, International Journal of Logistics Management, and Journal of Emergency Management.