Water wars in the arid western US are nothing new, but the rules of engagement have changed. The Klamath River basin on the California-Oregon border has seen the stage for a decades-long epic battle between farmers, fisherman, government agencies, utilities and tribes with treaty rights to dwindling salmon populations. More than 26 diverse groups have worked together to negotiate solutions to the most pressing problems the river facese, and are now close to a breakthrough that may breathe new life into the struggling river and its people.