Roger W. Watson

Modern nuclear power rests on a layered system of technical, organizational, regulatory, and institutional safeguards designed to prevent accidents, limit consequences if they occur, protect against malicious acts, and ensure that nuclear materials are not diverted for weapons. These safeguards are applied across the life cycle of a plant: siting, design, construction, operation, emergency planning, waste management, and decommissioning.Core principles: defense-in-depth and multiple physical barriersThe guiding principle follows a defense-in-depth approach, employing several independent protective layers to ensure that neither a single malfunction nor a human mistake results in a catastrophic release. Working alongside these safeguards are multiple physical barriers…

After four years of relentless conflict, Ukraine’s war has transformed far more than its own borders. From the mechanics of modern combat to the foundations of global alliances, the repercussions now stretch across continents.What started as a sweeping invasion has shifted into a drawn‑out confrontation that is reshaping military strategy, diplomatic relations and global power dynamics. For Ukraine, staying alive has required relentless adaptation under relentless attack. For Europe, the conflict has revealed weaknesses that years of relative calm had kept hidden. For the United States and other international players, it has triggered a reevaluation of obligations once seen as…