Reports & Papers

In this Project on Managing the Atom Discussion Paper, Philipp C. Bleek chronicles nuclear weapons proliferation choices throughout the nuclear age. Since the late 1930s and early 1940s, some thirty-one countries are known to have at least explored the possibility of establishing a nuclear weapons program. Seventeen of those countries launched weapons programs, and ten acquired deliverable nuclear weapons.

As early as the end of the Second World War it was recognized that nuclear fuel cycle technologies developed for military purposes—specifically, uranium enrichment and reprocessing—had major potential for peaceful applications but remained inherently dual-purpose, and if not controlled appropriately, could be diverted to military use. The very first issue considered by the newly founded United Nations was “the problems raised by the discovery of atomic energy.”

The Iran Nuclear Deal: A Definitive Guide has been produced in the interest of contributing to informed Congressional review and public discourse on a comprehensive nuclear agreement with Iran—the Joint Comprehensive Plan of Action (JCPOA). It provides a concise description of the agreement and the accompanying UN Security Council Resolution 2231. It also includes a balanced assessment of the agreement's strengths and weaknesses with respect to its central objective to prevent Iran from acquiring nuclear weapons.

The abstracts in this booklet summarise the research presented at an academic symposium convened on the sidelines of the 2015 NPT Review Conference. As we write this, journalists and seasoned experts in the nuclear policy field have been speculating about the particularly difficult challenges facing the Review Conference this year. To address those challenges, we would urge all concerned to consider the ideas and analyses presented at this symposium. Experts would be hard-pressed to find a better collection of fresh ideas and approaches for assessing and strengthening the NPT.

Since 1972, IAEA safeguards has played a pivotal role in providing assurances that states live up to their NPT commitments. Today, the NPT and the IAEA continue to remain as foundations to the peaceful use of nuclear energy and preventing proliferation. Over the span of time over which international safeguards has been around, it has been far from a static story.

Part of NTI's Innovating Verification reports series, Verifying Baseline Declarations of Nuclear Warheads and Materials analyzes how baseline declarations can contribute to near- and long-term arms control and non-proliferation goals and how to verify them without compromising sensitive information.

In trying to prevent adversaries from acquiring new military capabilities, countries often employ strategies of arms denial; e.g., “unilateral diplomacy,” supply chain interdiction, covert sabotage, and targeted military strikes. Using a game-theoretical model of weapons acquisition and denial, the authors posit that the prevalence of this approach gives rise to strategic effects that affect all players’ behavior.

A long term, comprehensive solution under the Joint Plan of Action needs to ensure Iran uses nuclear energy for exclusively peaceful purposes. Any such agreement will be complex and require a range of interrelated provisions. We have evaluated five commonly discussed proposals based on a set of criteria, including breakout potential, reversibility, stability, and verifiability and found them flawed.

Much of the achievements to prevent the spread of nuclear weapons can be attributed to the Nuclear Non-Proliferation Treaty (NPT), and to the work of the nuclear watchdog, the International Atomic Energy Agency (IAEA). Nonetheless, the new cases of proliferation reveal weaknesses in the IAEA verification systems, and illustrate states’ willingness to circumvent international safeguards. These cases also highlight the need to recognize that safeguards verification is a work in progress that must adapt to evolving challenges and technology