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Governments and the nuclear power industry have a strong interest in playing down the harmful effects of radiation from atomic weapons and nuclear power plants. Over the years, some scientists have supported the view that low levels of radiation are not harmful, while other scientists have held that all radiation is harmful. The author examines the radiation effects of nuclear bombs dropped on Japan in 1945; nuclear weapons testing; plutonium plant accidents at Windscale in England and Chelyabinsk in the Soviet Union; nuclear power plant emissions during normal operations; and the power plant accidents at Three Mile Island in the United States, Chernobyl in the Soviet Union, and Fukushima Daiichi in Japan. In each case, he finds a pattern of minimizing the damage to humans and attributing evidence of shortened life spans mostly to stress and social dislocation rather than to radiation. While low-level radiation is now generally accepted as harmful, its effects are deemed to be so small that they cannot be distinguished from the much greater effects of stress and social dislocation. Thus, some scientists declare that there is no point in even studying the populations exposed to the radioactive elements released into the atmosphere during the 2011 accident at Fukushima.

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Bulletin of the Atomic Scientists
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How are the Japanese people reacting to the news of the continuing contamination leak and what does it mean for Japan's energy policy? In an interview with PBS NewsHour on August 8, Kenji E. Kushida speaks about what the government may do to stop the flow.
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Unit 4 of TEPCO's Fukushima Daiichi Nuclear Power Station (02813334)
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CISAC's Sig Hecker talks to one of India's most respected newspapers, The Hindu, about why he admires India's nuclear energy program. India's world-class nuclear researchers can still learn many lessons from the Fukushima nuclear crisis, particularly in fostering a culture of safety. The world's largest democracy must demonstrate to its citizens that nuclear power is safe and sustainable in order to pursue its ambitious energy program.

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The undergound tunnel being built to connect the Fast-Breeder Nuclear Reactor to the sea, at the Kalpakkam Nuclear Complex, India, January 2013.
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This paper reflects on the credibility of nuclear risk assessment in the wake of the 2011 Fukushima meltdowns. In democratic states, policymaking around nuclear energy has long been premised on an understanding that experts can objectively and accurately calculate the probability of catastrophic accidents. Yet the Fukushima disaster lends credence to the substantial body of social science research that suggests such calculations are fundamentally unworkable. Nevertheless, the credibility of these assessments appears to have survived the disaster, just as it has resisted the evidence of previous nuclear accidents. This paper looks at why. It argues that public narratives of the Fukushima disaster invariably frame it in ways that allow risk-assessment experts to “disown” it. It concludes that although these narratives are both rhetorically compelling and highly consequential to the governance of nuclear power, they are not entirely credible.

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Regulation & Governance
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Rod Ewing, one of the nation’s leading experts on nuclear materials, has been named the inaugural Frank Stanton Professor in Nuclear Security at the Center for International Security and Cooperation.

Ewing has written extensively on issues related to nuclear waste management and is Chairman of the U.S. Nuclear Waste Technical Review Board. He will have a joint appointment as Professor of Geological and Environmental Sciences in the School of Earth Sciences and as a Senior Fellow at CISAC. He will begin his new position at Stanford in January.

“Given the very long and distinguished history of the Stanton Foundation’s involvement in issues of nuclear security, this appointment provides me with a unique opportunity to blend science with security policy,” Ewing said.

The endowed chair was recently established with a $5 million gift to CISAC from the Stanton Foundation to aid the center in its longstanding mission to build a safer world through rigorous policy research in nuclear security.

Former CBS president Frank Stanton established the foundation, which also funds CISAC’s Stanton Nuclear Security Fellowships for pre- and post-doctoral students and junior faculty who are studying policy-relevant issues related to nuclear security.

Ewing, currently the Edward H. Kraus Distinguished Professor in the Department of Earth & Environmental Sciences at the University of Michigan, will conduct research on nuclear security and energy and related issues relevant to international arms control policy when he arrives at Stanford.

He will teach a course at CISAC related to nuclear security issues. In his research at Stanford’s School of Earth Sciences, Ewing will focus on the response of materials to extreme environments and the demand for strategic minerals for use in the development of sustainable energy technologies.

“I am particularly interested in understanding the connections between nuclear energy, its environmental impact and proliferation of nuclear weapons,” he said “This appointment gives me the freedom to pursue teaching and research in this area across disciplinary boundaries.”

Tino Cuéllar, CISAC’s co-director and next director of its parent organization, the Freeman Spogli Institute for International Studies, said Ewing’s appointment as the inaugural Stanton chair would help CISAC and FSI remain at the forefront of global efforts to understand nuclear energy and its enormous consequences to civilization.

“How societies throughout the world handle nuclear security challenges will have a profound impact on our future, and problems involving the management and security of nuclear waste will in turn greatly affect nuclear security” Cuéllar said.

Ewing’s appointment continues a tradition at CISAC of blending faculty in the sciences and social sciences. The center’s co-founders believed political science and the natural sciences are essential components of global security.

Stanton himself became actively engaged in international security issues in 1954 when President Dwight D. Eisenhower appointed him to a committee to develop the first comprehensive plan for the nation’s survival following a nuclear attack. His connection to Stanford began as a founding member and chair of Stanford’s Center for Advanced Studies in the Behavioral Sciences in 1953 and a university trustee from 1953 to 1971.

 Read More About Ewing Here

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Earth scientist Rod Ewing joins Stanford as in inaugural Frank Stanton Professor in Nuclear Security.
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South Korea’s impressive nuclear power industry has quickly reached world class status on par with leaders like France, Japan and the United States. With this success has brought a familiar array of problems associated with spent nuclear fuel disposition. I present a model of spent fuel production and transportation in South Korea as well as a range of potential options to delay saturation of spent fuel storage pools in the short term. I will also discuss implications for arguments surrounding pyroprocessing as a long term solution to the fuel cycle, especially in the context of the upcoming renewal of the 123 nuclear sharing agreement with the United States.


Rob Forrest is a postdoctoral fellow at CISAC. His research focuses on the role of particle accelerators in the future nuclear fuel cycle, specifically on the feasibility of Accelerator Driven Systems (ADS) in sub-critical reactor designs and the transmutation of nuclear waste. Rob’s interest in policy and nuclear issues began during his fellowship in the 2008 Public Policy and Nuclear Threats program at the Institute on Global Conflict and Cooperation at UC San Diego. In 2010, he also participated in the PONI Nuclear Scholars Initiative at CSIS.

Before coming to CISAC in 2011, Rob received his Ph.D. in high-energy physics from the University of California, Davis. Most of his graduate career was spent at Fermi National Accelerator Laboratory (Fermilab) in Batavia, IL where he preformed a search for signs of a hypothetical theory called Supersymmetry. Before beginning his graduate work, Rob spent two years at SLAC National Accelerator Laboratory working with the Klystrons that supply the RF power to the accelerator. In 2001, Rob earned his B.S. in physics from the University of California, San Diego where, throughout his undergraduate career, he worked for the NASA EarthKam project.

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Rob Forrest is currently a member of the technical staff at Sandia National Laboratories where his research interests include nuclear power, cybersecurity, and nonproliferation. As a member of the systems research group, he specializes in data driven methods and analysis to inform policy  for national security.

As a postdoctoral fellow at CISAC, his research focused on one of the most pressing technical issues of nuclear power: what to do with spent nuclear fuel. Specifically, he looked at the more short term issues surrounding interim storage as they affect the structure of the back end of the fuel cycle. He focuses mainly on countries with strong nuclear power growth such as South Korea and China.

Rob’s interest in policy and nuclear issues began during his fellowship in the 2008 Public Policy and Nuclear Threats program at the Institute on Global Conflict and Cooperation at UC San Diego. In 2010, he also participated in the PONI Nuclear Scholars Initiative at CSIS.

Before coming to CISAC in 2011, Rob received his Ph.D. in high-energy physics from the University of California, Davis. Most of his graduate career was spent at Fermi National Accelerator Laboratory (Fermilab) in Batavia, IL where he performed a search for signs of a theory called Supersymmetry. Before beginning his graduate work, Rob spent two years at SLAC National Accelerator Laboratory. In 2001, Rob earned his B.S. in physics from the University of California, San Diego where, throughout his undergraduate career, he worked for NASA. 

 

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Robert Forrest Postdoctoral Fellow Speaker CISAC
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We consider the vulnerability of nuclear power plants to a disaster like the one that occurred at Fukushima Daiichi. Examination of Japanese nuclear plants affected by the earthquake and tsunami on March 11, 2011 shows that three variables were crucial at the early stages of the crisis: plant elevation, sea wall elevation, and location and status of backup generators. Higher elevations for these variables, or waterproof protection of backup generators, could have mitigated or prevented the disaster. We collected information on these variables, along with historical data on run-up heights, for 89 coastal nuclear power plants in the world. The data shows that 1. Japanese plants were relatively unprotected against potential inundation in international comparison, but there was considerable variation for power plants within and outside of Japan; 2. Older power plants and plants owned by the largest utility companies appear to have been particularly unprotected.

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Phillip Lipscy
Kenji E. Kushida
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Rod Ewing, a mineralogist and materials scientist who is an expert on nuclear waste management and policy, will join Stanford University to focus on sustainable energy, security and environmental research at the intersection of physical science and public policy.

Ewing has been named to a joint appointment as Professor of Geological and Environmental Sciences in the School of Earth Sciences and a Senior Fellow at the Center for International Security and Cooperation, within the Freeman Spogli Institute for International Studies. He also becomes the inaugural Stanton Professor in Nuclear Security Studies, an endowed chair established with a $5 million gift from the Stanton Foundation.

Ewing was appointed by President Barack Obama in 2012 to serve as the chair of the Nuclear Waste Technical Review Board, which is responsible for the technical review of Department of Energy activities related to transporting, packaging, storing and disposing of spent nuclear fuel and high-level radioactive waste.

Ewing, who earned his Ph.D. at Stanford and was granted a patent for the development of a highly durable material for the immobilization of excess weapons plutonium, is currently the Edward H. Kraus Distinguished University Professor in the Department of Earth & Environmental Sciences at the University of Michigan.

He will take up his new position at Stanford next January and will help bridge Earth Sciences and CISAC to encourage collaboration on scientific and public policy projects.

“What is important to me is to be able to see the connections between subjects that, at first glance, do not appear to be connected,” said Ewing, a former visiting professor at CISAC. His research will continue to focus on the response of materials to extreme environments and the increasing demand for strategic minerals for use in the development of sustainable energy technologies.

Ewing, who has been at the University of Michigan for 16 years, will take advantage of Stanford’s state-of-the-art laboratory facilities, such as the Stanford Synchrotron Radiation Lightsource, for his work on the response of materials to extreme environments.

Ewing said in the past five years there has been growing interest in the performance of materials under extreme conditions, such as inside a nuclear reactor.

“There is a practical interest because new types of materials may form under extreme conditions that have never been previously synthesized,” he said. “And in some cases, these new materials may have very useful properties.”

He expects to teach courses in nuclear security, mineralogy, and energy issues.

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Pamela A. Matson, the Chester Naramore Dean of Earth Sciences at Stanford, said Ewing would help the school define a program in strategic minerals.

“This is an area of renewed interest to us, particularly in light of the need for these resources in renewable energy technologies,” Matson said. “To address the sustainability challenges of the 21st century, we need to both innovate in science and technology areas, and also understand the social and political environments in which decisions are made – and Rod does both. We believe he will help us build a strong partnership between the School of Earth Sciences and CISAC, thus strengthening Stanford’s efforts to solve critical environment and energy problems.”

Ewing spent a year on sabbatical at CISAC during the 2010-2011 academic year. “The quality and diversity of topics really swept me away; everything from terrorism, to nuclear issues to the ethics of war,” he said of his year in Encina Hall.

“Rod Ewing will serve as a vital bridge between science and policy,” said Mariano-Florentino Cuéllar, Co-Director of CISAC.  “His research addresses fundamental questions about nuclear energy with enormous importance to global security.”

Ewing’s interest in nuclear science was sparked in childhood, when he saved up his allowance to buy the Disney book, “Our Friend the Atom.”

“Looking back at the book, one might call it propaganda, but it certainly captured my imagination,” said Ewing, who would go on to author or co-author more than 600 research publications and become the founding editor of the magazine, “Elements.”

As a graduate student on a National Science Foundation grant, he worked on a neglected field of metamict minerals, a relatively rare group of minerals damaged by radiation emitted by uranium and thorium atoms. The study of these unusual minerals in the last 30 years has blossomed into a broadly based research program on radiation effects in complex ceramic materials. This has led to the development of techniques to predict the long-term behavior of materials, such as those used in radioactive waste disposal.

Ewing will continue to chair the Nuclear Waste Technical Review Board as the DOE continues its efforts to find, characterize and license a geological repository for highly radioactive nuclear waste.

“The first issue at hand in the United States is to develop a process for selecting a repository site,” said Ewing. “The challenge will be to combine scientific and technical criteria with the consent of local communities, tribal nations and states.”

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Earth scientist Rod Ewing joins Stanford as in inaugural Frank Stanton Professor in Nuclear Security.
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CISAC Affiliate Rodney Ewing, Chairman of the U.S. Nuclear Waste Technical Review Board and Professor at the University of Michigan, testified before the Subcommittee on Energy and Water Development of the U.S. House of Representatives.

In this testimony, he discusses the approval process for disposal of nuclear waste, what can be learned from the failure of the Yucca Mountian Project and other nuclear waste projects globally. 

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Rodney C. Ewing

The Islamic Republic of Iran continues to defy UN Security Council resolutions calling for an end to its uranium enrichment program. Is Iran trying to develop nuclear weapons, as many fear, or does it just want to produce nuclear energy, as the Tehran government claims? What would be the likely consequences if Iran does get the bomb? What diplomatic and military options are available to address this serious crisis? Four expert panelists will discuss this issue.

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Research Fellow, Hoover Institution
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Abbas Milani is the Hamid and Christina Moghadam Director of Iranian Studies at Stanford University and a visiting professor in the department of political science. In addition, Dr. Milani is a research fellow and co-director of the Iran Democracy Project at the Hoover Institution.

Prior to coming to Stanford, Milani was a professor of history and political science and chair of the department at Notre Dame de Namur University and a research fellow at the Institute of International Studies at the University of California at Berkeley. Milani was an assistant professor in the faculty of law and political science at Tehran University and a member of the board of directors of Tehran University's Center for International Studies from 1979 to 1987. He was a research fellow at the Iranian Center for Social Research from 1977 to 1978 and an assistant professor at the National University of Iran from 1975 to 1977.

Dr. Milani is the author of Eminent Persians: Men and Women Who Made Modern Iran, 1941-1979, (Syracuse University Press, Syracuse, NY, 2 volumes, November, 2008); King of Shadows: Essays on Iran's Encounter with Modernity, Persian text published in the U.S. (Ketab Corp., Spring 2005); Lost Wisdom: Rethinking Persian Modernity in Iran, (Mage 2004); The Persian Sphinx: Amir Abbas Hoveyda and the Riddle of the Iranian Revolution (Mage, 2000); Modernity and Its Foes in Iran (Gardon Press, 1998); Tales of Two Cities: A Persian Memoir (Mage 1996); On Democracy and Socialism, a collection of articles coauthored with Faramarz Tabrizi (Pars Press, 1987); and Malraux and the Tragic Vision (Agah Press, 1982). Milani has also translated numerous books and articles into Persian and English.

Milani received his BA in political science and economics from the University of California at Berkeley in 1970 and his PhD in political science from the University of Hawaii in 1974.

Hamid and Christina Moghadam Director of Iranian Studies
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Abbas Milani Hamid and Christina Moghadam Director of Iranian Studies; Visiting Professor in the department of Political Science; Co-director of the Iran Democracy Project; CDDRL Affiliated Faculty Speaker
Abraham Sofaer George P. Shultz Senior Fellow in Foreign Policy and National Security Affairs, Hoover Institution, Stanford Speaker

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Målfrid Braut-Hegghammer is an Associate Professor of Political Science at the University of Oslo. She first joined CISAC as a visiting associate professor and Stanton nuclear security junior faculty fellow in September 2012, and was a Stanford MacArthur Visiting Scholar between 2013-15. Between 2008 and 2010 she was a predoctoral and postdoctoral fellow at Harvard University's Belfer Center for Science and International Affairs. Braut-Hegghammer received her PhD, entitled “Nuclear Entrepreneurs: Drivers of Nuclear Proliferation” from the London School of Economics in 2010. She received the British International Studies Association’s Michael Nicholson Thesis Prize that same year for her work.

 

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Malfrid Braut-Hegghammer Visiting Associate Professor; Stanton Nuclear Security Jr. Faculty Fellow Speaker

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The Caroline S.G. Munro Professor of Political Science
The Bass University Fellow in Undergraduate Education  
Senior Fellow, Freeman Spogli Institute for International Studies
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Scott D. Sagan is Co-Director and Senior Fellow at the Center for International Security and Cooperation, the Caroline S.G. Munro Professor of Political Science, and the Bass University Fellow in Undergraduate Education at Stanford University. He also serves as Co-Chair of the American Academy of Arts and Sciences’ Committee on International Security Studies. Before joining the Stanford faculty, Sagan was a lecturer in the Department of Government at Harvard University and served as special assistant to the director of the Organization of the Joint Chiefs of Staff in the Pentagon.

Sagan is the author of Moving Targets: Nuclear Strategy and National Security (Princeton University Press, 1989); The Limits of Safety: Organizations, Accidents, and Nuclear Weapons (Princeton University Press, 1993); and, with co-author Kenneth N. Waltz, The Spread of Nuclear Weapons: An Enduring Debate (W.W. Norton, 2012). He is the co-editor of Insider Threats (Cornell University Press, 2017) with Matthew Bunn; and co-editor of The Fragile Balance of Terror (Cornell University Press, 2022) with Vipin Narang. Sagan was also the guest editor of a two-volume special issue of DaedalusEthics, Technology, and War (Fall 2016) and The Changing Rules of War (Winter 2017).

Recent publications include “Creeds and Contestation: How US Nuclear and Legal Doctrine Influence Each Other,” with Janina Dill, in a special issue of Security Studies (December 2025); “Kettles of Hawks: Public Opinion on the Nuclear Taboo and Noncombatant Immunity in the United States, United Kingdom, France, and Israel”, with Janina Dill and Benjamin A. Valentino in Security Studies (February 2022); “The Rule of Law and the Role of Strategy in U.S. Nuclear Doctrine” with Allen S. Weiner in International Security (Spring 2021); “Does the Noncombatant Immunity Norm Have Stopping Power?” with Benjamin A. Valentino in International Security (Fall 2020); and “Just War and Unjust Soldiers: American Public Opinion on the Moral Equality of Combatants” and “On Reciprocity, Revenge, and Replication: A Rejoinder to Walzer, McMahan, and Keohane” with Benjamin A. Valentino in Ethics & International Affairs (Winter 2019).

In 2022, Sagan was awarded Thérèse Delpech Memorial Award from the Carnegie Endowment for International Peace at their International Nuclear Policy Conference. In 2017, he received the International Studies Association’s Susan Strange Award which recognizes the scholar whose “singular intellect, assertiveness, and insight most challenge conventional wisdom and intellectual and organizational complacency" in the international studies community. Sagan was also the recipient of the National Academy of Sciences William and Katherine Estes Award in 2015, for his work addressing the risks of nuclear weapons and the causes of nuclear proliferation. The award, which is granted triennially, recognizes “research in any field of cognitive or behavioral science that advances understanding of issues relating to the risk of nuclear war.” In 2013, Sagan received the International Studies Association's International Security Studies Section Distinguished Scholar Award. He has also won four teaching awards: Stanford’s 1998-99 Dean’s Award for Distinguished Teaching; Stanford's 1996 Hoagland Prize for Undergraduate Teaching; the International Studies Association’s 2008 Innovative Teaching Award; and the Monterey Institute for International Studies’ Nonproliferation Education Award in 2009.     

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Scott D. Sagan Caroline S.G. Munro Professor of Political Science; FSI and CISAC Senior Fellow Moderator
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