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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Social Security "No-Match" Letters: A Primer
Social Security no-match letters became an immigration enforcement tool under 2007 guidance, a shift that has raised significant legal concerns about worker discrimination.
Document Security Provisions: What's in the Cards?
Social Security cards lack the biometric identifiers, chips, and holograms found in other U.S. identity documents, leaving them the least secure widely used government ID.
Immigration and the 2007 French Elections
Immigration dominated France's 2007 presidential race as Nicolas Sarkozy and Ségolène Royal offered sharply contrasting visions on enforcement and integration.
Spotlight on Immigration Enforcement in the United States in 2005
In 2005, the Tucson sector of the U.S.-Mexico border alone accounted for 37 percent of all U.S. Border Patrol apprehensions.
Arizona Hosts Groups on Both Sides of the Immigration Debate
Arizona has become a hub for advocacy groups on both sides of the U.S. immigration debate.
Women Migrants in Transit and Detention in Mexico
After 2000, Mexico's migration crackdown left women in transit increasingly exposed.
New Congress Takes First Steps toward Immigration Reform
In early 2007, the new Democratic U.S. Congress pushed comprehensive immigration reform.
Migrations Transsahariennes vers l'Afrique du Nord et l'UE: Origines Historiques et Tendances Actuelles
Née de dynamiques historiques et structurelles, la migration transsaharienne résiste aux politiques de fermeture des frontières européennes et nord-africaines.
Mexican-Born Persons in the U.S. Civilian Labor Force
In 2006, Mexican-born workers outpaced U.S.-born peers in labor force participation yet remained concentrated in service and construction jobs.