To some, the idea of a border wall with Mexico represents a necessary and practical barrier to illegal immigration and the perceived host of ills that are associated with it. To others, it is both an unrealistic and inhumane effort that demonizes desperate individuals and families who are only seeking a better life. The debate is fierce and is bound up with competing notions of crime, ethnicity, opportunity, fairness, justice, and what America promises, offers, stands for, and represents. All sides of the debate are presented here, and each is given a fair and respectful hearing, allowing readers to sift through fact and opinion, evaluate the strength of arguments, and form an educated opinion on the issue.