Science, Technology, and Public Policy

"Washington needs to make a decision about its foreign-policy priorities, if tensions in eastern Ukraine are not reduced. Giving the events in Ukraine priority over all other international developments is a hazardous strategy. Negotiations have gotten us nowhere, and way more assertive steps against Russia are not likely to make Putin give in, since he seems to be determined not to lose his influence over eastern Ukraine and eager to demonstrate Russia's power."

Last October, at the foot of a rocky hillside near here, at a spot known as Degelen Mountain, several dozen Kazakh, Russian and American nuclear scientists and engineers gathered for a ceremony. The modest ribbon-cutting marked the conclusion of one of the largest and most complex nuclear security operations since the Cold War — to secure plutonium (enough to build a dozen or more nuclear weapons) that Soviet authorities had buried at the testing site years before and forgotten, leaving it vulnerable to terrorists and rogue states. The effort spanned 17 years, cost $150 million and involved a complex mix of intelligence, science, engineering, politics and sleuthing. This op-ed is based on documents and interviews with Kazakh, Russian and U.S. participants, and reveals the scope of the operation for the first time.