Published in the journal Bulletin of Atomic Scientists, this new article by Siegfried Hecker and Paul C. White below is based on content in Hecker's 2016 book, Doomed to Cooperate: How American and Russian Scientists Joined Forces to Avert Some of the Greatest Post-Cold War Nuclear Dangers:

“Nuclear weapons stink when taken apart,” a Russian nuclear weapons engineer told his audience. The year was 2000, and he spoke to a group of Russian and American experts who were attending a workshop in Sarov, the Russian Los Alamos, on how to safely dismantle nuclear weapons. The engineer was right: Nuclear weapons being disassembled smell like rotten eggs or a high-school chemistry lab gone bad. They can contain high explosives, organic substances, uranium, plutonium, and many other materials. Over the years, these materials interact, outgas, corrode, and are subject to irradiation, producing a foul smell. Hardly anyone outside the room would have had any reason to be aware of this, so the engineer’s words inspired knowing nods, and acted like a wink or a secret handshake: The Russian and American nuclear scientists in the room shared a common bond.

It was a strange phenomenon. Until just 10 years previously, the experts’ respective governments had been adversaries. But Russian and American nuclear scientists shared ties that no one else in the world could appreciate. Working far apart, they and their forebears had ushered into existence the world’s most destructive weapon, the atom bomb. They had worked to improve it, manage it, and make sure it was reliable. Now, they were trying to keep nuclear weapons safe from accidents and secure against theft and sabotage as the two superpowers downsized their arsenals. The scientists and engineers knew something that few others understood: That the most dangerous time in a typical nuclear weapon’s life cycle is not when it is being created, transported, or readied for launch. Rather, it is when it is being taken apart. Corrosion, changes in the sensitivity of chemical high explosives, outgassing of various compounds, radiation damage, and dimensional changes all challenge the skills of weapons engineers and scientists. The experts in the room might once have been one another’s opponents in some sense, but many on each side had intimate knowledge of weapons disassembly—who else could better understand what their counterparts were going through? 

An urgent problem

The story of how the United States and Russia worked together to address weapons safety had begun years before, and represents a remarkable tale of once-mortal-adversaries cooperating on matters that took them right to the edges of their respective countries’ most sensitive nuclear secrets.

It started with the disastrous Chernobyl nuclear reactor accident in April 1986. After briefly denying it had occurred, Moscow reached out to the international nuclear community for help mitigating the tragic consequences. Washington assisted quickly and effectively. Years later, Russian nuclear weapon scientists told their American counterparts (including the authors of this column) that the Chernobyl accident had happened because the Soviet Union was isolated. That is, Russian nuclear reactor designers, engineers, and operators had not had the opportunity to learn from their international peers. The weapon scientists assured us that the safety of nuclear bombs had always been much more rigorous. Yet the memory of the Chernobyl tragedy, and the enormous increase in the number of weapons being moved and disassembled, made Russian nuclear scientists keen to discuss concerns and safety practices with American counterparts.

The end of the Cold War all but eliminated immediate fears of a nuclear war. In an ironic twist of fate, though, it dramatically increased the risk of nuclear accidents and the potential for theft or diversion of nuclear weapons and materials. When the Soviet Union collapsed, Russia had to transport unprecedented numbers of weapons from former Soviet republics to Russia for dismantlement. No one was as sharply aware of the risks as Russia’s nuclear weapons personnel.

In the wake of the Presidential Nuclear Initiatives launched by George H.W. Bush and Mikhail S. Gorbachev in September and October of 1991, which promised transparency and dialogue on safe warhead transportation and storage, the Russians gave voice to their concerns. In Washington in November 1991, Viktor N. Mikhailov, later Russia’s minister of atomic energy, specifically requested help with weapon safety and security, as well as help storing the huge excess of fissile material that would result from the accelerated dismantlement of his country’s nuclear stockpile. The US Congress responded to these requests promptly by way of the Nunn-Lugar cooperative threat reduction legislation.

The scope and timing of the Nunn-Lugar efforts matched the urgency of Russian requests. To deal with security concerns related to the surge in warhead transportation, the United States cooperated to develop accident-resistant transportation containers. It provided armored Kevlar blankets to shield warheads and warhead containers from terrorist bullets, and smart rail cars that enabled secure monitoring of warhead shipments. Washington also helped meet the new storage requirements (resulting from increased dismantlement rates) by providing containers and technical and financial support for the construction of a state-of-the-art fissile material storage facility at the Mayak site in Russia.

These Nunn-Lugar-sponsored efforts, managed by the US Defense Department and supported by the US national nuclear labs, were a good beginning, but the Russian nuclear weapons experts wanted to do more to mitigate the dangers. The extraordinary number of nuclear weapons returning from the field and waiting to be disassembled included some past their certified lifetime. During one of the first meetings of Russian and American nuclear experts at Los Alamos in December 1992, Rady I. Ilkaev, the deputy scientific director of the Russian national nuclear lab VNIIEF, proposed direct, unclassified consultations on nuclear weapon safety.

The Russians not only sought bilateral technical cooperation, but also believed that Russian-American teamwork would demonstrate an unparalleled level of transparency about nuclear safety, which would help reassure their own citizens and a worried world that remembered the Chernobyl tragedy all too well.

Ilkaev and his Russian colleagues took advantage of the lab-to-lab scientific collaborations that blossomed during the early 1990s to explore much closer cooperation on safety—an approach that resonated strongly with their US lab counterparts. Yet no government agreements were in place to allow such cooperation. So two tracks were pursued in parallel: The governments prepared for formal negotiations, while simultaneously allowing the labs to exchange sensitive but unclassified nuclear-weapon safety and security concerns and practices. This sharing took the form of symposia called the Security Technology Exchanges. 

Four such symposia were held between October 1993 and March 1994, two in each country, at which American and Russian scientists, engineers, and government officials compared experiences on a range of topics. Subjects included analyzing nuclear risk; mitigating risks posed by hazardous materials; understanding the response of engineered systems to abnormal environments; and communicating the content of technical documents. 

One of the most important topics discussed in these symposia and later exchanges was human reliability. The economic and political crisis resulting from the collapse of the Soviet Union severely strained one of the foundations of nuclear weapon safety: people. One of the authors of this piece (Paul C. White) recalls that at a July 1993 planning meeting in Ekaterinburg, his Russian counterpart asked, “What do you do when you can no longer count on people to do what they’re supposed to do—to obey the rules?” Although the Russians’ confidence in the loyalty and patriotism of their nuclear workers remained high, they expressed concern that the fraying of the decades-old system of authority could give rise to insider threats.

A mutual strategic interest

These symposia opened doors, established a foundation for building trust, and nurtured professional and personal friendships that endure to this day. They also helped pave the way for government negotiations on the Weapons Safety and Security Exchange agreement, or WSSX, which the US energy secretary and Russian minister of atomic energy signed in December 1994. It entered into force in June 1995. 

In a March 1996 directive, US President Bill Clinton stated that cooperation on weapons safety and security was necessary to facilitate other US policy objectives, such as getting Russia to agree and comply with a true zero-yield Comprehensive Nuclear Test Ban Treaty. Clinton authorized lab-to-lab collaboration between the three Russian and three US nuclear weapons labs, with the goal of sustaining the scientific competence of those responsible for the two countries’ respective nuclear stockpiles. His statement was remarkable for declaring that maintaining the expertise of Russian nuclear weapons scientists—America’s Cold War adversaries—was now a US strategic interest.

Although WSSX was an agreement between governments, the nuclear labs provided the driving energy and remained the centers of engagement for all related activities. Over the life of the agreement, which was renewed for five years in 2000, the two sides organized dozens of technical interactions, including symposia, joint studies, workshops, and exchanges of technical papers. The participants completed more than 100 collaborative projects on far-reaching and mutually beneficial topics. Among them were projects on accident response, responding to wildfires near nuclear facilities, and safety during warhead dismantlement. When Americans shared their experience of using a well-known industrial solvent—DMSO, or dimethyl sulfoxide—instead of mechanical methods to remove high explosives that had bonded to metal weapon parts, a Russian participant stood up and declared, “you have just given us a gift!” Such “gifts” were exchanged reciprocally to improve warhead disassembly on both sides.

The discussions on responding to wildfires would also prove mutually beneficial. It wasn’t just technical staff from Los Alamos and Sarov who got to participate in exchange visits. So, too, did the fire departments of the two cities. In May 2000, Los Alamos experienced a devastating fire that burned more than 400 residences and 30 percent of the lab’s real estate, and threatened facilities that housed high explosives, plutonium, and tritium. In 2010, Sarov had to battle a peat fire at the boundary of its nuclear complex. Los Alamos experienced another serious wildfire in 2011. 

The WSSX exchanges allowed experts to learn new ways of looking at similar problems, unquestionably benefiting each country’s handling of the safety and security of its nuclear weaponry. In the book Doomed to Cooperate, one Russian nuclear safety expert said the exchanges led his country to adopt new federal regulations on nuclear weapons safety and emergency response. 

Sadly, the WSSX agreement was not extended in 2005. The end of this remarkable period of cooperation came at the hands of governments, not scientists. Washington imposed more legal and bureaucratic strictures on joint projects, and veered away from prioritizing nuclear safety to promote an agenda of arms control and transparency. Moscow became increasingly resistant to the presence of US technical personnel at its nuclear facilities. During the last three years, as relations between the US and Russian governments have seriously deteriorated, virtually all nuclear cooperation has ended.

Nuclear safety has become more challenging as the designers and engineers who developed the weapons in today’s arsenals retire, and the experience of nuclear testing fades into distant memory. The older generation has passed on as much experience as possible to the younger engineers—particularly the idea that ensuring nuclear safety is a never-ending job. The WSSX projects demonstrated that cooperation has great safety benefits, and can be accomplished without jeopardizing either side’s nuclear secrets. The scientists and engineers on both sides are prepared to resume cooperation. The bonds they forged endure, reflecting a unique like-mindedness, a sort of simpatico professional relationship (or sympatiya in Russian) that helped make scientific engagement such a success and the world a safer place.

Patrick Chamorel, senior resident scholar at the Stanford Center in Washington DC, weighs in on the geopolitical impact of the French and UK elections in a Scholars' Circle interview.  Joining the discussion are Jeroen Dewulf, associate professor of German at UC Berkeley and Mark Amsler, associate professor of European Languages and Literature at the University of Auckland. 

Hear what this panel of experts have to say by visiting FSI's podcast series "World Class".

South Korean President Moon Jae-in and U.S. President Donald Trump recently held a summit in Washington, their first face-to-face meeting in a time of heightened tensions on the Korean Peninsula. Experts from the Shorenstein Asia-Pacific Research Center offered insights in a series of publications and press interviews.

In advance of the summit, William J. Perry Fellow Kathleen Stephens spoke on Bloomberg television about the challenges facing the United States and South Korea, and how those challenges would be prioritized during the bilateral meeting.

Moon would be bringing the message that the U.S.-South Korea alliance is a “strong one and that he remains committed to it,” and that, “only by working transparently and closely together” could the two countries address areas of concern, Stephens said.

“Only when Washington and Seoul are able to talk very frankly to each other and come up with a coordinated plan do we have any chance of making some progress on North Korea,” she added.

Stephens joined the program from Seoul, where a group of Shorenstein APARC faculty and fellows participated in a public seminar and the Korea-U.S. West Coast Strategic Forum, a biannual conference that seeks to foster dialogue about issues affecting the Korean Peninsula and the U.S.-South Korea alliance.

The seminar, held in conjunction with The Sejong Institute, received press coverage; such articles can be read on the Voice of America website (in Korean) and Sisa Journal website (in Korean).

In an analysis piece for Tokyo Business Today, Associate Director for Research Daniel Sneider assessed the outcomes of the summit between Moon and Trump, suggesting that their meeting was satisfactory – without signs of major discord.

“For the most part, this display of calculated pragmatism worked well. There was no visible daylight between the two leaders over how to handle the North and THAAD totally disappeared from the summit talk, at least in public and in the joint statement issued by the two governments.”

The summit, however, may prove to be a “temporary gain,” Sneider added. “Beneath the smiles, there was plenty of evidence of the gaps, and even the tensions, that exist between a progressive government in Seoul, one that echoes the views of its ideological predecessors of a decade ago, and a nationalist, conservative regime in Washington.”

Read the piece in English and Japanese.

Days after the summit, North Korea test-launched an intercontinental ballistic missile (ICBM), which the United States and South Korea followed by hosting joint military exercises.

Stephens spoke on WBUR radio about the ICBM test launch and the initial reactions of the Trump administration.

“If [President Trump’s] agenda is to take stronger defensive measures against North Korea, I think he will find strong partners in Japan and South Korea,” she said, noting that other measures, such as diplomacy and economic sanctions, have also been used to affect pressure on the regime.

Responding to a question about China’s relationship with North Korea, Stephens said Beijing has not exhausted all possible tools in its efforts to persuade Pyongyang to slow or abandon its nuclear and missile activities. This is because China fears a collapse of the regime and “takes a long view” in its calculus, she said.

This news item has been updated.

CISAC's Rodney Ewing and co-author Allison Macfarlane explain in this commentary article in Science magazine how the U.S. can overcome major obstacles to its current nuclear waste program. They note, "Nuclear facilities, whether for disposal or interim storage, take decades to plan, license, and build. Moreover, sustained opposition to a nuclear facility can prevail, simply because opponents only need to succeed occasionally to derail large, complicated projects. The United States needs a strategy that can persist over decades, not just until the next election." Read more.

The CISAC Fellowship Program is training and educating the next generation of thought leaders and policy makers in international security.

Our fellows spend the academic year engaged in research and writing, and participate in seminars and collaborate with faculty and researchers. Every summer, many complete their fellowships and move on to new career endeavors. For the 2016-17 academic year, CISAC hosted 21 fellows (the center has 399 former fellows).

Some of our fellows, in their own words, explain what they will be doing next:

Andreas Lutsch

Having spent two years as a nuclear security postdoctoral fellow at CISAC, I return to my home institution, the Julius-Maximilians-University of Würzburg, Germany. As a historian of late modern history, I do so in great gratitude for an excellent and abundantly rich scholarly experience at Stanford. Once I am back in Germany, I will publish my first book early next year, the manuscript of which I finalized at CISAC. I will also proceed to publish the manuscript of my second book, which I wrote entirely at Stanford. And I will move towards the pursuit of the so-called “habilitation,” which is required (in Germany) to qualify for a position as a full professor in my home country. 

It is not easy to put into a few words how much my CISAC experience has helped me with making progress at a crucial juncture of my career. CISAC fellowships offered me a transformative opportunity to make my research more rigorous, to think more creatively and more carefully, to appreciate interdisciplinary approaches in addressing complex problems, to improve my teaching abilities, and to establish relationships with leading scholars and specialists, which I hope will be long-lasting ties to communities at CISAC, Stanford, and the U.S.

Anna Péczeli

I have a tenured position at my institute in Hungary so I will move home in August and get back to teaching and research.

My CISAC experience was amazing, from the beginning I felt that I was part of a community here. I got much useful feedback on my research, and I really feel that my work improved in quality and I became a better researcher. I learned a lot about how to present my ideas so that it would be relevant for policy makers, and my fellowship opened new doors for me. I am grateful for this opportunity, and I am certain that I will continue to be an active member of the CISAC community wherever I go.

Eric Min

During the 2017-2018 academic year, I will remain at CISAC. As a social sciences postdoctoral fellow, I will study how international actors and third parties utilize diplomacy to manage and resolve interstate conflicts. This builds upon my broader research agenda, which uses new quantitative data and statistical methods to analyze the strategic logic of negotiations during war. 

Given that I came from a predominantly social science background, my year at CISAC was invaluable in helping me to understand the policymaking world and how my research could more effectively communicate the technicalities of my research to a broader informed yet general audience. I also learned about what kinds of pressing questions concern policymakers, which I will use to shape my future work. I look forward to meeting another group of diverse and knowledgeable individuals next year. 

Jennifer L. Erickson

This fall, I will return to my regular life at Boston College, where I am an associate professor of political science and international studies. In the upcoming academic year, I will continue to work on the research I worked on at CISAC on new weapons and the laws and norms of war and the nuclear weapons portion of my project in particular. I will also teach two sections of the Introduction to International Studies for BC undergraduates and the Field Seminar in International Politics for BC graduate students. In the fall, I also look forward to being affiliated with the Security Studies Program at MIT. 

CISAC has been a tremendous source of academic support for my research. Not only has it given me time and resources to do research and write, but it has also introduced me to new colleagues, who have generously provided insights and expertise that have improved that research. It also made it possible for me to attend events like a conference on New Dilemmas in Ethics, Technology, and War at the Air Force Academy in April 2017, the Military Immersion Map Exercise at RAND in May 2017, and the UN Conference to Negotiate a Legally Binding Instrument to Prohibit Nuclear Weapons in June 2017.

These experiences, as well as all of the opportunities to attend events and meet people at CISAC itself, will continue to shape how I think about my research and teaching and have helped me build new professional networks for the long term.

Cameron Tracy

In the next academic year, I will be a postdoc in Stanford’s Department of Geological Sciences. There, I will continue my work on the role of geologic disposal (burial) of weapons plutonium in the global arms control and disarmament regimes. I will also conduct scientific research on the manner in which nuclear materials change in response to their environments. For example, I am currently starting a project in which I attempt to determine the conditions in which uranium-bearing materials have been stored by studying the oxidation and hydration of their surfaces. This could help to determine the provenance of smuggled uranium that has been interdicted by law enforcement or security authorities. 

My fellowship at CISAC has allowed me to translate my scientific skills to the policy realm, and to greatly expand the impact of my work. I have long been interested in science policy, but lacked the resources, connections, and experience necessary to effectively analyze critical issues and to communicate the results to both scholarly and governmental audiences. Through interactions with CISAC’s resident policy experts, I learned about the role that technical analysis can play in the policymaking process.

While my transition to policy-relevant work is ongoing, my efforts have already yielded some impact on international policy, with an Australian Royal Commission report citing my work on quantifying the long-term risks associated with the burial of nuclear materials. I expect that the valuable experience and mentorship I received over the course of my CISAC fellowship will continue to inform and enhance my work at the interface of nuclear science and policy.

Jooeun Kim

I will become the Jill Hopper Memorial Fellow at Georgetown University and will be teaching a course, the History and Politics of Nuclear Proliferation, in spring 2018. From August this year, I will be a visiting scholar at the Institute for Security and Conflict Studies at George Washington University. CISAC provided me with amazing resources. I loved my intellectually stimulating meetings with my mentor Scott Sagan and other amazing scholars who opened their office doors to me. CISAC is an ‘intellectual candy store.’ I am grateful to everyone there for creating such a special environment.

Andrea Gilli

Starting July 1, I will be a postdoctoral fellow at Harvard University's Belfer Center for Science and International Affairs where I will keep working on my research about technology and international security.

The CISAC experience helped my career in three main ways. First, CISAC is a fantastic academic environment where young researchers can deal with leading scholars in a plurality of fields: the constant interactions between different views and expertise represent a unique source of intellectual growth that has helped me develop new ideas and identify new questions in my field.

Second, CISAC's activities and professional growth initiatives help fellows gain the skills and acquire the knowledge to succeed not only as an academic but also, more broadly, as public intellectual. CISAC has helped me improve my understanding of policy dynamics as well as my capacity to present to non-experts the findings of my research. Third, CISAC's "be-good" motto combined with its strong mentorship provides fellows with a perfect working environment.

Eva C. Uribe

This fall, I will be starting my position as a systems research analyst at Sandia National Lab. For my research here at CISAC, I have taken a broad, holistic look at the proliferation impact of the thorium fuel cycle. Therefore, CISAC has given me valuable experience in thinking through difficult problems using a systematic, top-down approach, which is a skill that I will take with me to my next position.

Accepting a postdoctoral fellowship with CISAC was an unconventional career move for me, personally. I got my doctorate in chemistry from UC Berkeley in 2016. Most of my peers in the chemistry department went on to conduct postdoctoral research at another university, a national lab, or in industry. A few made the leap into science policy fellowships in Washington, D.C. For me, CISAC provided a happy compromise between these two options. It allowed me the freedom to continue conducting technical research (albeit outside the chemistry lab), while still exploring the policy implications of my research.

My experience at CISAC helped my career progression in two ways. First, through targeted workshops, reading groups, and less formal daily interactions, CISAC provided me with the opportunity to view my research and interests from a different lens, that of the policymaker.  It was interesting to see my fellow fellows, of all academic backgrounds, struggling with how to translate the finer points of their academic research into policy-relevant media. I learned a lot from their experiences and challenges. The second way that CISAC has helped my career progression was through exposure to others who have done this transition successfully. This was achieved through fantastic seminar series, as well as through daily interaction with faculty and fellows here at CISAC. Speaking with people who have worked at high levels in Washington, D.C. made me realize that I would prefer to continue doing policy-relevant academic and technical research in nuclear science, rather than to transition to policy completely.

Fellowship information

Current fellowship opportunities at CISAC include: 

•  Social Sciences or Humanities International Security Fellowship

•  Natural Sciences or Engineering International Security Fellowship

•  Cybersecurity and International Security Fellowship

•  Law and International Security Fellowship

•  Nuclear Security Fellowship

•  William J. Perry Fellowship in International Security

For more information about CISAC fellowships, email cisacfellowship@stanford.edu.