Nancy Hiemstra is a political geographer whose research focuses on US immigration enforcement policies. She is the author of Detain and Deport: The Chaotic U.S. Immigration Enforcement Regime and co-editor of Intimate Economies of Immigration Detention. She is Associate Professor at Stony Brook University in Long Island, New York, US.Deirdre Conlon is a critical geographer working in the US and Britain. Her work focuses on how immigration and border controls are proliferating as they are monetized. She is co-editor of Intimate Economies of Immigration Detention and Carceral Spaces: Mobility and Agency in Imprisonment and Migrant Detention. She is Associate Professor based at the University of Leeds.