Roger G. Johnston, Ph.D., CPP, is head of the Vulnerability Assessment Team at Argonne National Laboratory. He was the founder and head of the Vulnerability Assessment Team at Los Alamos National Laboratory from 1992 to 2007. Dr. Johnston has provided consulting, training, vulnerability assessments, research, and security solutions for dozens of organizations including private companies, NGOs, and government organizations such as the IAEA, Euratom, the U.S. Department of State, DoD, and DOE/NNSA. Johnston graduated from Carleton College (1977), and received M.S. & Ph.D. degrees in physics from...