(Co-written by W. Bradford Wilcox, director of the National Marriage Project and associate professor of sociology) We interviewed the Valdezes in the course of writing our new book, “Soul Mates: Religion, Sex, Love, and Marriage among African Americans and Latinos.” Much of the recent news about American Latinos has been negative, highlighted by invective about undocumented immigrants. We wanted to learn what was going right for Latinos and their families.