2026 NTI Nuclear Security Index
The 2026 NTI Nuclear Security Index proposes an agenda for a new era of leadership at a moment when the risk environment leaves no room for complacency.
Simon Thorpe is the spring 2026 Herbert Scoville Jr. Peace Fellow at NTI. He supports NTI’s Nuclear Materials Security team, contributing to the Nuclear Scaling Initiative, the Global Dialogue on Nuclear Security Priorities, and the 2026 NTI Nuclear Security Index. He is passionate about modernizing nuclear safeguards and developing practical solutions to the challenges posed by global nuclear energy expansion.
Prior to joining NTI, Thorpe earned a Master of Arts in International Relations from the Johns Hopkins School of Advanced International Studies (SAIS). He also holds a Bachelor of Arts in Global Studies from the University of California, Los Angeles. Thorpe recently served as a Research Fellow with the U.S. Army’s Foreign Military Studies Office, where he analyzed Russian and Chinese influence in the Indo‑Pacific, and he was selected for the U.S. Department of State’s Critical Language Scholarship in Mandarin Chinese.
Analysis
NTI Blogs
5 Data Points You Should Know from the 2026 NTI Index
The NTI Index team spent months poring over thousands of data points. Here are five especially worth knowing.
When Official Channels Close, Track IIs Keep Diplomacy Moving
Beijing and Washington must be on the same page to avoid nuclear material from falling into the wrong hands. Continued Track II engagement on nuclear security is essential for preserving cooperation within a critical area of shared interest, even when diplomacy between political officials is at an impasse.
When the Shooting Stops: Securing Iran’s Nuclear Program After the War
Convincing Iran to forgo nuclear weapons development may be the most difficult challenge of all.
Projects
NTI Nuclear Security Index
Building a framework for assurance, accountability, and action