In this chapter, I explore the unprecedented formal experiments of Richard Mosse and Ai Weiwei in their attempts to capture the signature global event of our time, the mass movements of refugees and immigrants across geopolitical boundaries. In Mosse's Incoming, a thermal camera registers the heat emanating from human bodies from some 30 miles away, providing images of refugees in lifeboats, transport trucks, and refugee camps that are both other-worldly, almost mutant in their strangeness, and deeply moving. In Ai Weiwei's Human Flow, drone cameras render the vast scale of human displacement around the world—a view from above that is interspersed with the close witnessing of cell phone video, using the visual language of spontaneous documentation in counterpoint with a technology associated with military surveillance. Both films articulate, in different ways, the challenge the refugee poses to the model of the nation state, the grand narrative that has dominated political and cultural life for the past two hundred years, as well as to the doctrine of human rights, a challenge Hannah Arendt first exposed in an essay published in 1951.