1 Luz M. López is with the Boston University School of Social Work, Boston, MA. Lisa de Saxe Zerden is with the School of Social Work, University of North Carolina Chapel Hill. Philippe Bourgois is with the Department of Family and Community Medicine and Anthropology, School of Medicine, University of Pennsylvania, Philadelphia. Helena Hansen is with the Departments of Psychiatry and Anthropology and the Nathan Kline Institute for Psychiatric Research, New York University, New York, NY. Roberto Abadie and Kirk Dombrowski are with the Department of Sociology, University of Nebraska-Lincoln. Ric Curtis is with the Department of Anthropology, John Jay College of Criminal Justice, The City University of New York, New York, NY.