Nuclear Issues

This week the National Nuclear Security Administration (NNSA) announced that 546 kilograms of plutonium and highly enriched uranium (HEU) shipped from Japan arrived in the United States.

The just-concluded fourth and final nuclear security summit saw some serious progress, but also some missed opportunities.

This paper was written by Stephen R. Covington, with a Foreword written by Kevin Ryan.

In Putin’s view, any solution short of changing the European security system—including full integration, separation by erecting new walls, freezing the status quo around Russia, or partnering with other countries to counter-balance the powers in the European system—only means Russia’s inevitable loss of great power status and the loss of his personal power at home.

Many Chinese worry that as Japanese politics moves rightward, it could result in the country seeking its own weapons. Beijing's concerns have intensified with its confrontation with the Abe administration over historical recognition and territorial issues. In this op-ed, Hui Zhang argues that it is time for Tokyo to stop reprocessing and eliminate its surplus plutonium as soon as possible. Tokyo should address concerns over its reprocessing plans and plutonium stocks. To reduce suspicions, Tokyo should take specific steps to abide strictly by its "no surplus plutonium policy".

The most significant achievement to emerge from the 2014 Nuclear Security Summit was a pledge by 35 countries to observe the terms of a joint agreement, known as Strengthening Nuclear Security Implementation. This document committed the signatories to incorporate the principles and guidelines of the International Atomic Energy Agency (IAEA) regarding nuclear security into their national laws, and to allow teams of international experts to periodically evaluate their security procedures. Promoted strongly by the chairs of all three nuclear summits—the United States, South Korea, and the Netherlands— the 2014 initiative is an important step towards creating a robust global security system designed to prevent nuclear materials from falling into the hands of terrorists.

Today, the United States and Japan announced that Japan would eliminate all the plutonium and highly-enriched uranium at its Fast Critical Assembly (FCA) at Tokai-mura.  This is a tremendous step forward for nuclear security; for terrorists, this would be some of the best material that exists in any non-nuclear-weapon state.  The material includes 331 kilograms of plutonium, most of it weapons-grade, and 214.5 kilograms of weapons-grade HEU.  (The FCA also includes over a ton of material just at the 20 percent U-235 mark that defines HEU.)   The weapons-grade HEU is enough for four simple terrorist “gun-type” bombs or a larger number of trickier-to-build implosion bombs.  The plutonium amounts to more than 40 bombs worth of material.