From the Introduction: "In 2014, the Center for the Study of Weapons of Mass Destruction at National Defense University published a paper on the future of weapons of mass destruction (WMD). It projected WMD-relevant geopolitical and technological trends and made judgments as to how those trends would shape the nature and role of WMD in 2030. Those projections and judgments, summarized in the next section, largely remain viable. Since 2014, however, significant developments bearing on the future of WMD have occurred, which this paper explores."
National Intelligence University: https://ni-u.edu/wp/