Science, Technology, and Public Policy

The escalating threats between North Korea and the United States make it easy to forget the “nuclear nightmare,” as former US Secretary of Defense William J. Perry put it, that could result even from the use of just a single terrorist nuclear bomb in the heart of a major city.

At the risk of repeating the vast literature on the tragedies of Hiroshima and Nagasaki—and the substantial literature surrounding nuclear tests and simulations since then—we attempt to spell out here the likely consequences of the explosion of a single terrorist nuclear bomb on a major city, and its subsequent ripple effects on the rest of the planet. Depending on where and when it was detonated, the blast, fire, initial radiation, and long-term radioactive fallout from such a bomb could leave the heart of a major city a smoldering radioactive ruin, killing tens or hundreds of thousands of people and wounding hundreds of thousands more. Vast areas would have to be evacuated and might be uninhabitable for years. Economic, political, and social aftershocks would ripple throughout the world. A single terrorist nuclear bomb would change history. The country attacked—and the world—would never be the same.

Written for the 50th Anniversary of the Finnish Nuclear Society: My reflections from close to thirty years of service at the International Atomic Energy Agency. The following is summarized from the attached longer article.

As the IAEA Director General Emeritus, Hans Blix put it “A nuclear accident anywhere is an accident everywhere”. Fukushima revealed that no one state is immune from fallacies that resulted both before and after the nuclear accident. That will be also true with any nuclear terrorism event, which we have been spared thus far.

Before trashing the Iran deal — the agreement inked last fall, which limits Iran’s nuclear program in exchange for sanctions relief — the incoming Trump administration should consider how a policy of soft economic engagement with Tehran could provide Washington with strategic leverage and increased bargaining power in a post-Iran deal world.

Throughout his campaign, now President-elect Trump attacked the Iran deal, claiming that “it will go down in history as one of the worst deals ever negotiated.” The future of the deal now seems to be far less certain, as Trump fills key positions with outspoken critics of the agreement. Congressman Mike Pompeo (R-KS), Trump’s recent pick for CIA director, is well-known for his hardline stance on the deal, recently noting that it should be “rolled back.”

While the U.S. administration maintains that Iran has thus far complied with the nuclear deal, the recent International Atomic Energy Agency (IAEA) report indicates that for the second time, Iran has exceeded the Joint Comprehensive Plan of Action’s (JCPOA) limit for its inventory of heavy water.

This spring, the United States hosted the fourth and final Nuclear Security Summit in Washington, DC. Senior representatives of more than 50 nations convened to mark the end of an unprecedented international initiative over the last six years to strengthen security measures aimed at preventing nuclear terrorism. During that time, many states made significant progress, but more work is needed.