Nuclear Issues

"As world leaders gather for the fourth nuclear security summit this week, in the aftermath of the horrifying terrorist attacks in Brussels, it seems likely that Belgian Prime Minister Charles Michel will have more to say than anyone else — both about real nuclear terrorist dangers and about real steps taken to improve nuclear security...."

"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...."

"In Iraq, Afghanistan, Yemen, Libya, and several other places, U.S. leaders failed to realize that there were limits to what U.S. power could accomplish and that military force is a crude instrument that inevitably produces unintended consequences. Defeating third-rate armies and toppling foreign leaders was easy, but conventional military superiority did not enable Washington to govern foreign societies wisely or defeat stubborn local insurgencies."

William H. Tobey, Matthew Bunn, and Nickolas Roth oppose proposed legislation that would prohibit funding for fixed radiation detectors to catch nuclear smugglers. They argue for a balanced program to defeat nuclear smuggling that includes strong security, effective law enforcement and intelligence work, and interdiction efforts and border controls backed by both fixed and mobile radiation detectors.

"This is the moment for Obama to help Putin understand that he now stands at a fateful fork in the road. If he moves swiftly to end the conflict with Ukraine by offering terms acceptable to Ukrainian president Petro Poroshenko, he can restore economic relations with the West, gain access to advanced technologies required to increase future production of Russian oil and gas and modernize other sectors of the Russian economy, and thus ensure Russia's chance for a stable, prosperous future. The alternative is to persist on a path that presents growing risks of what he fears most."

The thought that what we are now witnessing in Ukraine could trigger a cascade of actions and reactions that end in war will strike most readers as fanciful. Fortunately, it is, writes Graham Allison. But we should not forget that in May 1914, the possibility that the assassination of an Archduke could produce a world war seemed almost inconceivable. History teaches that unlikely, even unimaginable events do happen.