Using a couple of brass rods and a big helping of ingenuity, one tiny Texas town has managed to subvert a drought-related crisis and bring water to the people. The Llano River was dangerously close to drying up as Texas faces a punishing and record-breaking drought. Residents of this Hill Country town west of Austin depend on the river for their entire water supply. It neared zero flow this week, and the city was looking at trucking in water from 20 miles away, when city leaders employed the old-fashioned "witching" technique to strike water in the limestone bedrock near the...