Unauthorized Immigration/Irregular Migration

Explore all research, analysis, commentary, and data on unauthorized immigrants and irregular migrants, terms used in different parts of the world to describe the individuals who lack the right to reside legally in their country of destination, as well as the policies and enforcement practices affecting them.

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Unaccompanied Minors: A Crisis with Deep Roots and No Simple Solutions

This telebriefing by Doris Meissner and Marc Rosenblum of MPI examines factors behind the flow of unaccompanied children from Central America and Mexico to the United States, which has surged 90 percent since last year. The talk also previews a policy brief on unaccompanied minors that MPI will release in July. 

The Deportation Story: Deporter-in-Chief, Releaser-in-Chief, or Reformer-in-Chief?

The release of MPI's report, examining the U.S. deportation system with analysis on migrant apprehensions, removals, and criminal prosecutions, includes discussion on the evolution of the deportation system over the past two decades and some of the leading policy options circulating as the executive branch undertakes a policy review.