Abstract
Roughly 20 million shipments of radioactive material are transported worldwide each year via commercial transportation vectors. Many of these can be considered a significant movement of risk-significant quantities of radioactive and nuclear material. A strong argument can be made to support the idea that transportation presents the greatest vulnerability in radioactive sealed source and nuclear material life-cycles. Historical and current information strongly suggests adversarial interest in obtaining radiological and nuclear materials with the intent of malicious use. In this context, it is necessary to understand the current trends and patterns in transportation threats as they apply to these materials in order to better understand security needs and current adversarial methods and mind-set.
The authors propose to summarize current threats posed to radiological and nuclear materials during the transportation phase of the lifecycle. The paper and ensuing presentation will focus on a review of historical events where the adversarial intent was to disrupt the transportation phase of nuclear and radioactive material with malicious intent, as reported in open source literature. Its purpose is to better understand the nature of current and past transportation incidents involving these materials in order to clarify the evolving nature of the threats and vulnerabilities they reveal. Relevant incidents involving transportation of these materials will be discussed as well as the historical trends associated with these events. A regional perspective based on an analysis of transportation incidents involving these materials will be discussed. While not necessarily predictive of the types of malicious disruptions that might occur in the future, this study will provide a rich information source from which lessons can be gleaned pertinent to the potential security and public safety threats posed by the transportation of commercial radioactive and nuclear material.