"Today and tomorrow, world leaders will gather for what will likely be the final international summit on security for nuclear weapons and the materials needed to make them—a key tool for preventing nuclear terrorism. The last time this group met, at the 2014 Nuclear Security Summit in the Hague, they declared that preventing terrorists from acquiring nuclear weapons or weapons-usable materials remained “one of the most important challenges in the years to come.” Yet, since then, nuclear security has improved only marginally, while the capabilities of some terrorist groups, particularly the Islamic State, have grown dramatically, suggesting that in the net, the risk of nuclear terrorism may be higher than it was two years ago..."

"World leaders face a stark choice at the final Nuclear Security Summit later this week: Will they commit to efforts that continue to improve security for nuclear weapons, fissile materials, and nuclear facilities, or will the 2016 summit be seen in retrospect as the point at which attention drifted elsewhere, and nuclear security stalled and began to decline? The answer will shape the chances that terrorist groups, including the Islamic State, could get their hands on the materials they need to build a crude nuclear bomb...."

Islamic State attacks will continue until it is defeated. We are at war — at war with a ruthless, bloodthirsty, and capable enemy bent on inflicting as much carnage as possible on the United States and its allies. The president did not choose this war, but he must no longer shirk from it.

The security failures revealed by Sister Megan Rice at the Y-12 National Security Complex at Oak Ridge, Tennessee were legion, rooted in complacency and poor training. We must have a culture committed to continuous improvement. If people are to create an excellent security culture, they must be trained and certified as competent.

In this new report, Preventing Nuclear Terrorism: Continuous Improvement or Dangerous Decline?, Matthew Bunn, Martin Malin, Nickolas Roth, and William Tobey provide a global reality check on nuclear security. They note that effective and sustainable nuclear security capable of addressing plausible threats is the single most effective chokepoint preventing terrorists from acquiring a nuclear weapon.

Senior Fellow William Tobey testified on March 17, 2016, before the Senate Foreign Relations Committee on "Reviewing the Administration’s Nuclear Agenda."

The president of the United States has many responsibilities, but none is more important than Article Two of the Constitution’s charge that the president shall be commander in chief of our armed forces. Anyone who would demean a service member’s heroic pursuit of duty, or even contemplate issuing unlawful orders to commit war crimes and expect them to be obeyed (as Trump did when he threatened to attack the families of terrorists), is unfit for any rank in the U.S. military, let alone service as commander in chief.

Reducing the Use of Highly Enriched Uranium in Civilian Research Reactors is a report of the Committee on the Current Status of and Progress Toward Eliminating Highly Enriched Uranium Use in Fuel for Civilian Research and Test Reactors. The committee was established by the Nuclear and Radiation Studies Board, Division on Earth and Life Studies and the National Academies of Sciences, Engineering, and Medicine. The report is the result of a congressionally mandated study (P.L. 112-239, Section 31781) to assess improvement in reducing highly enriched uranium use in fuel for civilian research and test reactors.

Belfer Center Senior Fellow William Tobey is a member of the Committee that produced the report.

Through several programmatic evolutions, U.S. efforts to convert HEU research reactors and to repatriate fresh and spent fuel, have significantly advanced efforts to prevent nuclear proliferation and terrorism.  Unavoidable technical and political factors have slowed this progress.  To maintain the program’s momentum, fresh thinking will be necessary and deserves support from the executive and legislative branches of government.

Last week, a National Academies of Sciences, Engineering, and Medicine panel affirmed the goal of eliminating highly enriched uranium (HEU) from civilian use, while recommending step-wise conversion of high performance research reactors using weapon-grade uranium fuel and that the White House coordinate a 50-year national roadmap for neutron-based research. (Full disclosure:  I sat on that committee, and oversaw the NNSA reactor conversion program from 2006-9; this post, however, represents my views, not necessarily those of the committee or NNSA.)