This paper argues that, in addition to humanitarian concerns, policies toward immigrants should also be shaped by recognition of special responsibilities toward some populations of noncitizens. National governments acquire such responsibilities in part through their histories of coercive impositions on those populations. Former imperial powers, in particular, often possess special obligations toward the inhabitants of their foreign colonies that go beyond their general humanitarian responsibilities. Those obligations might be met in various ways; but if national governments of wealthy, formerly imperial (...) states granted greater access for immigration to the poor of their former colonies, migration flows might significantly contribute to reductions in global levels of inequality. (shrink)