ST. HELENA, Calif. (AP) — With California in the grips of drought, farmers throughout the state are using a mysterious and some say foolhardy tool for locating underground water: dowsers, or water witches. Practitioners of dowsing use rudimentary tools — usually copper sticks or wooden "divining rods" that resemble large wishbones — and what they describe as a natural energy to find water or minerals hidden deep underground. While both state and federal water scientists disapprove of dowsing, California "witchers" are busy as farmers seek to drill more groundwater wells due to the state's record drought that persists despite recent...