Book excerpt: Thoughtful investigative report about a central issue of the 2008 presidential race that examines the border in human terms through a cast of colorful characters. Asks and answers the core questions: Should we close the border? Is a fence or wall the answer? Is the U.S. government capable of fully securing the border? Reviews the political, economic, social, and cultural aspects and discusses NAFTA, immigration policy, border security, and other local, regional, national, and international issues.