SAN ANTONIO - The sprawling, 2,000-mile U.S.-Mexico border illustrates economic contrasts and financing dilemmas of historic proportions.

With U.S.-Mexico trade more than tripling since 1986 and the region's manufacturing workforce almost quadrupling within a decade, the border is a symbol of the global economy and of the North American free trade zone, the world's largest.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.