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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New Estimates of the Undocumented Population in the United States
The 2000 U.S. Census pushed estimates of the unauthorized population in the United States to 8.5 million.
A Grand Bargain: Balancing the National Security, Economic, and Immigration Interests of the U.S. and Mexico
This influential paper outlines a “grand bargain” that the United States and Mexico could agree to create a legalization program, new border security, and temporary worker program.
Background Paper on Immigration and National Security
Post-9/11 review of U.S. visa and border systems urges better intelligence sharing and EU-style cooperation to boost security while protecting civil liberties.