He is co-editor and a contributing author for Wounded Border/Frontera Herida: Readings on the San Diego /Tijuana Region and Beyond. In addition, he is co-author of No One is Illegal with Mike Davis (Haymarket, 2006) ; a contributing author to Immigration: Opposing Viewpoints (Greenhaven, 2004); and a columnist for the progressive magazine Media Project . His articles have appeared in the San Diego Union-Tribune, Miami Herald, Sacramento Bee , and other newspapers. .