A significant majority of illicit trafficking incidents involving nuclear and radioactive materials since 1993 have occurred during transit, according to a sobering new report from the International Atomic Energy Agency (IAEA). The data, compiled from an IAEA database tracking such events, reveals that approximately 55% of all reported thefts and disappearances of these sensitive materials happened while they were being transported. This statistic underscores the critical vulnerabilities present within the global supply chain for nuclear and radioactive substances, highlighting the persistent threat of these materials falling into the wrong hands.\n\nThe IAEA's analysis, based on 360 over the past nearly three decades, paints a concerning picture of the challenges in securing nuclear and radioactive materials. While the majority of incidents involve radioactive sources used in medicine, industry, and research, the potential for misuse of even these less potent materials, or the eventual diversion of weapons-grade material, remains a grave concern for international security. The report implicitly calls for enhanced security measures at every stage of transport, from initial loading to final destination, and emphasizes the need for robust tracking and communication protocols.\n\nThese findings arrive at a time of heightened global tensions and ongoing efforts to prevent nuclear proliferation and terrorism. The potential consequences of radioactive materials being acquired by non-state actors or rogue nations are dire, ranging from radiological dispersal devices ("dirty bombs") to more catastrophic nuclear events. The IAEA's proactive data collection and analysis serve as a crucial early warning system, enabling the international community to better focus resources and develop more effective preventative strategies against nuclear trafficking.\n\nGiven these statistics, what more can be done to fortify the transportation of nuclear and radioactive materials worldwide to prevent theft and diversion?