Last week, we published Trust & Verify No. 163. In the lead article, I write about science diplomacy as a concept and exemplifies this by looking at some relatively recent VERTIC experiences. Science diplomacy is starting to become studied in depth by the European Union, through Horizon 2020 and its S4D4C project. Science diplomacy is engrained in arms control, and especially so in verification. However, much work remains to bring it into an accepted multilateral framework.