In the early 1890's, an armed rebellion fueled by religious fervor erupted over a wide area of northwestern Mexico. At the center of the outburst were a few hundred farmers from the village of Tomochic and a teenage folk saint named Teresa, who was ministering to thousands of people throughout the area. When the villagers proclaimed, "We will obey no one but God ," the Mexican government exiled "Santa Teresa" to the United States and trained its...