In this seminar, Jef Huysmans will explore an agenda of motioning the politics of (in)security by analysing how techniques of mapping migration work within and upon security-migration nexuses. Motioning the politics of (in)security comes to the question of security and migration by focusing on how mapping methods produce particular conceptions of movement in the production of spatial knowledge and artefacts. More specifically, he will explore how taking a Lucretian point of view that understands life and matter as essentially in motion transmutes the international and humanitarian security conceptions of movement-space through which migration and its regulatory possibilities are imagined and conducted. To that purpose, the seminar introduces a distinctive mode of mapping that Jef Huysmans will refer to as nomadic counter-mapping which disrupts cartographic practices working with sedentarising grids and network conceptions of movement. Reading mapping of migration-security nexuses through debates and practices of counter-mapping places ‘mapping’ directly in a politicised context of struggles, contestations, and disagreements over representations and narrations of migration and security modes of governing it.