Many undergraduates can often be motivated by the opportunity to explore issues requiring them to develop at least a modest understanding of the underlying science. For many students, “just in time” science makes good sense. There are many issues that we can use for this purpose involving almost all scientific disciplines. Environment, health and medicine, energy, and climate change are just a few areas generating issues that require an understanding of the science involved and that have been described by JCST authors. Recent developments in national security and international relations coupled with positions advanced by the new U.S. administration and endorsed by the United Nations make nuclear weapon policy a prime issue that can be used for this purpose.