Rod Ewing is the Frank Stanton Professor in Nuclear Security and Co-Director of the Center for International Security and Cooperation in the Freeman Spogli Institute for International Studies and a Professor in the Department of Geological Sciences in the School of Earth, Energy and Environmental Sciences at Stanford University. Ewing’s research focuses on the back-end of the nuclear fuel cycle, mainly nuclear materials, radiation effects and the crystal-chemistry and geochemistry of radionuclides. He is the past president of the Mineralogical Society of America and the International Union of Materials Research Societies. Rod has written extensively on issues related to nuclear waste and is a co-editor of Radioactive Waste Forms for the Future (1988) and Uncertainty Underground – Yucca Mountain and the Nation’s High-Level Nuclear Waste (2006). He received the Lomonosov Medal of the Russian Academy of Sciences in 2006 and the Roebling Medal of the Mineralogical Society of America in 2015. He is a member of the National Academy of Engineering. He is a Founding Editor of the magazine, Elements, which is now supported by 17 earth science societies and president-elect of the American Geoscience Institute comprised of 52 earth science societies. He is a Principal Editor for Nano LIFE, an interdisciplinary journal focused on collaboration between physical and medical scientists and is a member of the Science and Security Board of the Bulletin of Atomic Scientists. In 2014, he was a Founding Executive Editor of Geochemical Perspective Letters and named to the Editorial Board of Applied Physics Reviews. In 2012, he was appointed by President Obama to chair the Nuclear Waste Technical Review Board, which provides scientific and technical reviews of the U.S. Department of the Energy’s programs for the management and disposal of spent nuclear fuel and high-level radioactive waste. He stepped down in 2017.