From 1985 to 1994 there existed a significant but unheralded experiment in professional baseball. For ten seasons, the Tecolotes de los Dos Laredos (The Owls of the Two Laredos) were the only team in professional sports to represent two nations. Playing in the storied Mexican League (an AAA affiliate of major league baseball), the "Tecos" had home parks on both sides of the U.S.-Mexico border, in Laredo, Texas and in Nuevo Laredo, Tamaulipas. In true...