Despite the prevalence of externalization, much work in the ethics of immigration continues to assume that the admission of immigrants is determined by state immigration officials who decide whether to admit travelers at official crossings. This assumption neglects how decisions about entrance have been increasingly relocated abroad – to international waters, consular offices, airports, or foreign territories – often with non-governmental or private actors, as well as foreign governments functioning as intermediaries. Externalization poses a fundamental challenge to achieving just migration (...) policies. It reliably harms vulnerable people, prevents refugees from receiving protection, leads to human rights abuses, and dissipates blame and accountability, creating a serious lacuna in assigning moral responsibility. (shrink)