The detection of a small amount of genetically modified material in a Washington state farmer's non-GMO alfalfa crop constitutes a "commercial issue" only and does not warrant any government action, the U.S. Department of Agriculture said on Tuesday. The Washington state farmer had complained in late August to state agricultural officials that his alfalfa hay had been rejected for export sale because of the presence of a genetically modified trait that makes the crop resistant to herbicide. The event triggered a wave of concern from consumer and agricultural groups who have fought the government for nearly a decade to keep...