Why would a successful American physician choose to live in a twelve-foot-by-twelve-foot cabin without running water or electricity? To find out, writer and activist William Powers visited Dr. Jackie Benton in rural North Carolina. No Name Creek gurgled through Benton's permaculture farm, and she stroked honeybees' wings as she shared her wildcrafter philosophy of living on a planet in crisis. Powers, just back from a decade of international aid work,...