With this revision of his classic work Operation Gatekeeper, author Joseph Nevins not only updates the ongoing story of immigration and "illegalization" that has made this subject such a firestorm of socio-political controversy in the United States today, but he also uses the history and current events of this case to examine deeply and provocatively the meaning of boundaries and identities in our era of globalization and economic interdependence.

This is a major revision and update of Nevins’ earlier classic and is an ideal text for use with undergraduate students in a wide variety of courses on immigration, transnational issues, and the politics of race, inclusion and exclusion. Not only has the author brought his subject completely up to date, but as a "case" of increasing economic integration and liberalization along with growing immigration control, the US. / Mexico Border and its history is put in a wider global context of similar development s elsewhere.

There are also photo essays, including one related to deportations and another to California’s Border Field State Park, for which the site also includes historic photos and other resources. Finally, the site has links to websites—from U.S. government agencies involved in boundary and immigrant policing, to humanitarian and border, migrant, and human rights organizations.