Nuclear Issues

In this Q&A, Joseph S. Nye talks about his advice for the interim and future president of Harvard in the wake of Claudine Gay's resignation, which countries should be highest on our radar to prevent the threat of nuclear war, what role the U.S. should play in the Russia-Ukraine war, the significance of U.S. alliances in the Middle East, and more.

Chinese strategists increasingly believe that U.S. nonnuclear strategic capabilities threaten China’s nuclear forces. Although there is limited evidence of a shift in its nuclear strategy, China is changing its strategic posture to ensure its second-strike capability, including by relying on advanced conventional weapons (e.g., counterspace capabilities, cyber weapons, and electronic warfare) that can target U.S. missile defense. The dynamics of a nuclear-conventional entangled security dilemma may weaken arms race stability.

An analysis of Taiwan’s military value concludes that its reunification with China would improve Chinese submarine warfare and ocean surveillance capabilities, tipping the military balance in China’s favor. These findings have important implications for U.S. operational planning, policy, and grand strategy.

Could a conventional war between China and the United States escalate to the nuclear level? An assessment of three mechanisms of China-U.S. inadvertent escalation—use-it-or-lose-it, unauthorized/accidental, and damage limitation—concludes that the risk of China-U.S. inadvertent nuclear escalation is extremely low.

States frequently acquire proof that other states have violated norms. Yet, existing theories do not fully explain how states wield such proof to coerce wrongdoers. Four case studies of nuclear proliferation probe a novel theory of how states coerce norm violators by concealing, sharing privately, or publicizing proof of guilt.

Aditi Verma and Denia Djokić call for rethinking our collective approach to the benefits and risks of nuclear technology—a call that is crucial and timely. As humanity confronts the catastrophic consequences of climate change, questions related to the viability of nuclear energy to achieve a decarbonized world abound. The authors, however, push the boundaries of the current conversation by arguing that what is required to make nuclear energy “viable” for the twenty-first century is much more than just an exercise in technological development.

The central aim of this special issue is to explore how research findings and insights from the humanities and social sciences can be used to shape and meaningfully inform the work of practitioners and policy makers in the nuclear energy sector and its corresponding areas of research and practice—all of which presently, in many ways, simultaneously face several challenges and opportunities and find themselves at a crossroads.

Although nuclear reactor design is recognized as an essential skill and intellectual output of academic nuclear engineering, little attention has been paid within the discipline to the structure of the reactor design process and factors influencing design outcomes. This paper, which marks the first systematic attempt to explore the structure of the reactor design process and choices, applies methodological and theoretical tools developed within the mechanical engineering design studies field to the study of nuclear reactor design.