National Public Radio: Farmers in California, where Gov. Jerry Brown last month, are facing hard choices as a drought threatens to ruin their crops. They must weigh the costs of paying for irrigation against the chance that their fields will never get enough water this season. A striking picture illustrates the severity of the situation, as Northern California's Folsom Lake, a reservoir northeast of Sacramento, is seen in January at only 17 percent of its capacity. In July of 2011, "the lake was at 97 percent of total...