The nineteen authors in this collection recognize that one characteristic of globalization is the movement not only of goods and ideas but also of people. The crossing of geographical borders confronts Christians, as well as all citizens, with choices: between national security and human insecurity, between sovereign national rights and human rights, between citizenship and discipleship. Bearing these global dimensions in mind, the essays in this book focus on the particular problems of immigration across the U.S.-Mexico border. The contributors to this volume include scholars as well as pastors and lay people involved in immigration aid work. Contributors: Oscar Andrés Cardinal Rodríguez, Gioacchino Campese, Daniel G. Groody, Jacqueline Hagan, Donald Senior, Peter C. Phan, Alex Nava, Gustavo Gutiérrez, Stephen Bevans, Robert Schreiter, Giovanni Graziano Tassello, Patrick Murphy, Robin Hoover, Graziano Battistella, Donald Kerwin, Raúl Fornet-Betancourt, Olivia Ruiz Marrujo, and Jorge E. Castillo Guerra.