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In March 2011, a post-earthquake tsunami triggered nuclear meltdowns, hydrogen-air explosions and the release of radioactive materials from the Fukushima Daiichi Nuclear Power Plant in Fukushima Prefecture, Japan. The Fukushima disaster has been called the most significant nuclear incident since the 1986 Chernobyl disaster. Professor Rodney C. Ewing, Frank Stanton Professor in Nuclear Security and co-director at the Center for International Security and Cooperation (CISAC) in the Freeman Spogli Institute for International Studies (FSI), as a member of a team of Japanese researchers, today published a report on the details of what exactly — at the particle level — was released into the air after the disaster.

In the discussion that follows, Ewing explains the team’s findings and why they are important for health and environmental safety.

Why did you decide to study the Fukushima disaster?

The Fukishima Daiichi event surprised me. I now teach a freshman seminar on this event. I am particularly interested to understand why the accident occurred and what the long-term impact will be on the environment. This research paper reflects my interest in answering these questions.

We’ve heard lots about possible health effects from contaminated water after the Fukushima disaster, but less about particulates in the air. What did you find?

During the core melt-down events at Fukushima Daiichi, radioactivity was released as fine particulates that traveled in the air, sometime for distances of tens of kilometers, and settled onto the surrounding countryside.

In order to understand the health risk, it is very important to understand the form and chemistry of these particulates.

Recently, in a previous paper we have described a new type of particulate that is Cs-rich (some Cs isotopes are highly radioactive). The highly radioactive Cs-rich particles formed in the reactor by condensation from a silica-rich vapor, formed from the melting of core and concrete structures. In this paper, we describe the first identification of fragments of the melted core that were entrapped by the Cs-particles and transported away from the reactor site, some 4 kilometers. This is an important discovery because this provides us with samples of the fuel and melted core.

This is a special contribution because it uses very advanced electron microscopy techniques that allow for imaging of individual atoms or clusters of atoms. This advanced technique is required because the particles are so small — nanometers in size.

How did you come to work with your collaborators in Japan?

I have had long standing collaborations with Japanese scientists for decades. The lead researcher for the group, Professor Satoshi Utusunomiya, was once a member of my research group when I was at the University of Michigan. We have always collaborated on topics that involve radioactive materials and the use of electron microscopy. This collaboration is an entirely natural outgrowth of previous collaborations.

What, if any, policy recommendations would you suggest based on your findings?

The most direct result would be to design monitoring systems so that we have a good record of released particulates. Also, we need to push the development of advanced analytical techniques so that these particulates can be quickly identified and characterized.

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Rodney C. Ewing, Frank Stanton professor in nuclear security and co-director at the Center for International Security and Cooperation (CISAC) in the Freeman Spogli Institute for International Studies (FSI) was named winner of the 2018 Robert Cahn Award by the Journal of Nuclear Materials and the committee of NuMat 2018, the Nuclear Materials Conference.

The annual award recognizes a scientist with a high scientific profile in the field of nuclear materials who has both the ability to communicate science to a broad audience and demonstrated interest in breaking down barriers between different scientific disciplines.

Rod EwingEwing, also a professor in the Department of Geological Sciences in the School of Earth, Energy and Environmental Sciences at Stanford, the Edward H. Kraus Distinguished University Professor Emeritus in the Department of Earth & Environmental Sciences at the University of Michigan, and a Regents' Professor Emeritus at the University of New Mexico, primarily researches the study of radiation effects in materials. His body of work defined a new research field involving radiation-induced damage in solids from the radioactive elements present in their crystal structures, and has been recognized for its significant impact on the design of nuclear waste forms for containing high-level radioactive waste. Professor Ewing will receive the award in Seattle at the Nuclear Material Conference (NuMat) in October 2018 where he will open the conference with the Robert Cahn Award Keynote Lecture.

Read more about the 2018 Robert Cahn Award on the Elsevier website.

About the Center for International Security and Cooperation (CISAC)

The Center for International Security and Cooperation tackles the most critical security issues in the world today. Founded in 1983, CISAC has built on its research strengths to better understand an increasingly complex international environment. It is part of Stanford’s Freeman Spogli Institute for International Studies (FSI). Though scholarly research, fellowships, and teaching, CISAC is educating the next generation of leaders in international security and creating policy impact on a wide variety of issues to help build a safer world.

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Abstract: Founded in 1945 by Manhattan Project scientists who “could not remain aloof to the consequences of their work,” the Bulletin of the Atomic Scientists aimed to chronicle the dawn of the nuclear age through the words of the men and women who built the atomic bomb. In 1947, Bulletin supporters—including a veritable Who’s Who of nuclear physics, from Einstein and Fermi to Szilard and Oppenheimer—expanded their four-page newsletter into a magazine that featured a minimalist clock, ticking toward the midnight of nuclear Armageddon, on its cover. More than 70 years later, the now-famous Doomsday Clock is set each January to reflect the world’s security situation. That event is now covered by thousands of media outlets around the world, and today’s Bulletin is hardly your grandfather’s niche magazine. It has become a global multimedia platform that deals with a host of manmade threats to civilization—from nuclear weapons to climate change and on to a host of emerging technologies—and reaches a worldwide digital audience of millions each year.     

Speaker bio: John Mecklin is the editor-in-chief of the Bulletin of the Atomic Scientists. Previously, he was editor-in-chief of Miller-McCune (since renamed Pacific Standard), an award-winning national magazine that focuses on research-based solutions to major policy problems, and the top editor of High Country News, a nationally acclaimed magazine that reports on the politics, environment, and culture of the American West. Writers working at his direction have won many major journalism prizes, including the George Polk Award, the Investigative Reporters and Editors certificate, and the Sidney Hillman Award for social justice journalism. Beyond his columns for the magazines he has edited, Mecklin’s writing has been published by Foreign Policy, The Columbia Journalism Review, and the Reuters international news service, among other media outlets. Before his magazine work, Mecklin was an investigative newspaper reporter and covered the Persian Gulf War from Saudi Arabia and Iraq. He holds a master in public administration degree from Harvard's John F. Kennedy School of Government.

John Mecklin Bulletin of the Atomic Scientists
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Abstract: It has been more than a decade since the UN Security Council enacted Resolution 1540—the most far-reaching of international instruments to counter Weapons of Mass Destruction (WMD) terrorism. It requires states to adopt and enforce effective laws to keep WMD materials outside the reach of terrorists. Scholars and policy makers compliment 1540 for making WMD trafficking illegal, for raising awareness of threats and increasing states’ capacity to reduce them. In 2017, one hundred and seventy-six states reported to the UN on domestic measures they took to comply with 1540. These numbers may produce a false sense of confidence in universal implementation of 1540. The threat of WMD terrorism remains potent. Allegations of ISIS using mustard agents against the Kurds, North Korea shipping chemicals to Syria or middlemen trafficking nuclear materials via Moldova suggest that the international response to WMD smuggling has not achieved its desired results. It is, therefore, important to evaluate the UN’s role in preventing WMD terrorism, and explore ways to further strengthen it. Drawing on interviews, fieldwork and observation data, this talk will examine the 1540 regime’s setup and its performance. It will outline policy options to improve the international counter-proliferation and counter-terrorism regime.

Speaker  bio:  Sarah Shirazyan is a Nuclear Security Postdoctoral Fellow at CISAC. Her research is funded by the MacArthur Foundation. She received her Doctor of Juridical Sciences Degree from Stanford Law School. Her dissertation empirically analyzes the effectiveness of the UN Security Council Resolution 1540 in preventing terrorists from accessing Weapons of Mass Destruction. Sarah designed Interpol-Stanford policy lab and serves as a Lecturer in Law at Stanford Law School. For her outstanding research, teaching and community service, Stanford named Ms. Shirazyan as one of the recipients of Gerald J. Lieberman Award.

In addition to her academic experience, Sarah has held multiple posts with leading tech companies and international organizations. Sarah worked at Facebook’s Global Policy Team, where she developed company’s engagement strategies with inter-governmental organizations. Ms. Shirazyan also designed the data protection and privacy curricula for legal professionals at the Council of Europe. Prior to that, Ms. Shirazyan was a Drafting Lawyer for the European Court of Human Rights; worked on nuclear security issues at the U.N. Office for Disarmament Affairs; and handled international drug cartel investigation cases at the INTERPOL Secretariat. 

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Sarah Shirazyan is a leading expert in technology law and policy, misinformation, and responsible AI development. She is a Lecturer in Law at Stanford Law School, where she teaches a course on combating misinformation online. She also serves as a Director and Head of Meta's GenAI Product Policy work, overseeing the development and implementation of company-wide policies governing the responsible use of generative AI technologies. In this role, Dr. Shirazyan advises product and engineering teams to ensure trust, safety, and ethical innovation across Meta's platforms. Previously, she led the company’s efforts to inform its misinformation and algorithmic ranking policies through engaging with experts across the globe.

Prior to joining tech industry, Dr. Shirazyan held multiple posts with leading international organizations—she was a data protection consultant for the Council of Europe; served as human right lawyer for the European Court of Human Rights; worked on nuclear security issues at the U.N.; and handled international drug cartel investigation cases at INTERPOL.

From 2017-2020, she designed and ran Interpol-Stanford Policy Lab at Stanford Law. From 2017-2018, Dr. Shirazyan was a Nuclear Security Postdoctoral Fellow at CISAC. Her research was funded by the MacArthur Foundation. She received her Doctor of Juridical Sciences Degree from Stanford Law School. Her dissertation empirically analyzes the effectiveness of the UN Security Council’s response to WMD terrorism. For her outstanding research, teaching and community service, Stanford named Ms. Shirazyan as one of the recipients of the Gerald J. Lieberman Award.

Her work has been published in Journal for National Security Law and Policy, Lawfare, Just Security, Stanford Journal of Online Trust and Safety, Arms Control Today, and Project on Nuclear Issues by Center for Strategic and International Studies (CSIS).

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Abstract: In the last 30 years I have been actively involved in various safety assessment exercises for high level and low and intermediate level nuclear waste disposal sites, mainly for the Swedish SKB programme but also for a number of European programmes (Spain, France, Finland and the UK). During this time some of these programmes have evolved from pure concepts to actual implementation, some others have remained in the limbo of the generic conceptual projects. The different degrees of development are basically the result of the way the scientific and technical issues have been tackled and more importantly how the implication from society has been implemented in the programmes. In my presentation I will attempt to discuss the various levels of scientific, technological and societal development of the various programmes and their potential correlation with the fulfilment of their objectives.

Speaker bio: Jordi Bruno has a PhD in Inorganic Chemistry by the Royal Institute of Technology (KTH), Stockholm and an Executive MBA from Stanford University. He has over 30 years of experience in the field of nuclear waste management, risk analysis and environmental management strategies. The main areas of expertise include: evaluation of performance and safety of nuclear waste repositories, sustainability, chemical risk assessment and, toxic / hazardous and geological storage of CO2.

From 2008 on, he has been the CEO and Chairman of the Board of Amphos 21 Consulting and from 2009, he has been the CEO and Chairman of the Board of Amphos 21 Group. From 2000 to 2014 he was Director of the Chair Enresa-Amphos 21 on Sustainability and Waste Management in the Universitat Politècnica de Catalunya (UPC).

He is author or co-author of more than 130 peer reviewed papers and five books, as well as many communications to international conferences and technical reports.

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Abstract: The safety of a nuclear and any complex system is enhanced by analyzing failures and incorporating the lessons learned into ongoing and future activities.

The triad of hardware, software, and human factors drives nuclear safety. Although each of the 14 reactor core melt incidents that have occurred involved a different reactor design, in none of these cases was the root cause a failure of a major component or an error in analysis. In the six major core melts with which I am most familiar, human factors--the interface of human beings with the hardware and software--played a surprisingly important and under-appreciated role in accident initiation or progression.

The pattern revealed by these analyses of accidents implies that human factors must be better evaluated and integrated into nuclear designs. Several examples of failure modes and the role played by human factors in these accidents are discussed.

Speaker Bio: Milton Levenson started his nuclear work on the Manhattan Project in January 1944. His first assignment was in the development of the barrier for the Gaseous Diffusion plant. Later that year he was transferred to what is now the Oak Ridge National Laboratory to work on chemical separations projects.

In 1948 he joined the Argonne National Laboratory as part of the Atomic Energy Agency relocation of nuclear reactor research. He eventually became Argonne’s Associate Laboratory Director for Energy and the Environment.

In 1973 he joined the newly formed Electric Power Research Institute (EPRI) as director of nuclear power. In 1980 when President Reagan appointed Kenneth Davis the Deputy Secretary of Energy, Levenson joined the Bechtel Corporation in the role vacated by Davis.

In 1990 he retired from Bechtel. He continues to consult and currently is one of the six Senior Technical Advisors (STA) to the Nuclear Explosives Division (NED) of DoE's National Nuclear Security Administration (NNSA).

Much of his career has involved safety. He was personally involved in the aftermath of six of the 14 core melt events. He was asked to take charge of the 100 technical staff assembled at TMI to provide technical support to the utility staff. He was extensively involved with Chernobyl, co-chairing with Dr. Velikov, Gorbachev's Science Advisor, a detailed review of the cause of the accident. He chaired the Argonne Safety Committee that reviewed the EBR 1 accident, the Borax 1 experiment, and the SL 1 project. He had secondary roles in connection with the Lucens and Fermi 1 accidents.

Levenson is a member of the National Academy of Engineering. He has served on 30 National Academy studies and chaired 12 of them. He is a recipient of the Robert E. Wilson Award of the American Institute of Chemical Engineering for contributions to nuclear chemical engineering.  He received a special award from the American Nuclear Society for work defining the Source Term, the basic value that largely determines the consequences of nuclear accidents.

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Milton Levenson Senior Technical Advisors (STA), Nuclear Explosives Division National Nuclear Security Administration (NNSA), DOE
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Overconfidence in the controllability of nuclear weapons creates danger. The passing of the last elite witness of the most dangerous nuclear crisis, i.e. the “Cuban Missile Crisis”, and the Trump administration only make this more salient. In this context, this article reviews the scholarly literature about the limits of predictability and controllability of nuclear crises and investigates three failures of learning from them. Given that France displays in particularly acute form some of the sources of overconfidence in the controllability of nuclear crises that can been found in other nuclear armed states, this article offers the first study of the French experience and evolving interpretation of the Cuban missile crisis in comparative perspective, based on untapped primary material. In security studies, this article makes three contributions. First, the publication and interpretation of primary sources is a contribution in itself given the frequent misconceptions about nuclear dynamics due to theory-driven extrapolations. Second, it challenges a widespread assumption of automaticity linking a fear-induced deterrent effect and the presence of nuclear weapons. Third, empirically, this article studies part of a regime of valuation of nuclear weapons. It finally outlines a research agenda to take luck seriously in security studies.

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European Journal of International Security
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Benoît Pelopidas
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This is a chapter in the second edition of The National Security Enterprise, a book edited by Roger Z. George and Harvey Rishikof that provides practitioners' insights into the operation, missions, and organizational cultures of the principal national security agencies and other institutions that shape the U.S. national security decision-making process. Unlike some textbooks on American foreign policy, it offers analysis from insiders who have worked at the National Security Council, the State and Defense Departments, the intelligence community, and the other critical government entities. The book explains how organizational missions and cultures create the labyrinth in which a coherent national security policy must be fashioned. Understanding and appreciating these organizations and their cultures is essential for formulating and implementing it. Taking into account the changes introduced by the Obama administration, the second edition includes four new or entirely revised chapters (Congress, Department of Homeland Security, Treasury, and USAID) and updates to the text throughout. It covers changes instituted since the first edition was published in 2011, implications of the government campaign to prosecute leaks, and lessons learned from more than a decade of war in Afghanistan and Iraq. This up-to-date book will appeal to students of U.S. national security and foreign policy as well as career policymakers.

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Georgetown University Press
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Thomas Fingar
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Under the sponsorship of Stanford University, we designed a massive open online course (MOOC) to raise public consciousness about the past, present, and future dangers of nuclear weapons. Most individuals—and many policymakers—remain blissfully unaware that risks such as nuclear terrorism, a regional nuclear war, or a nuclear conflict started by accident are higher today than during the Cold War. Our course, Living at the Nuclear Brink: Yesterday and Today, successfully appealed to a broad audience and increased discourse about this existential threat facing humankind. Consequently, we believe our experience lends insight into MOOCs in general, and demonstrates that they can be a powerful tool to create an informed citizenry.

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Inside Higher Ed
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William J. Perry
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Siegfried Hecker describes the scientific collaboration that took place between Russian and American nuclear weapons laboratories following the end of the Cold War. Their shared pursuit of fundamental scientific discoveries built trust between the nuclear weapons scientists and resulted in important scientific progress.

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Bulletin of the Atomic Scientists
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Siegfried S. Hecker
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