A narrow legal case over whether Canadian farmer Percy Schmeiser infringed on biotech patents held by Monsanto Co. has mushroomed into a broader battle over genetically modified organisms that will be heard before the Supreme Court of Canada on Tuesday.Monsanto has already won two lower-court judgments against Saskatchewan farmer Percy Schmeiser, successfully arguing he used its canola without a license.</p><p><a href="http://www.reuters.com/newsArticle.jhtml?type=scienceNews&storyID=4160933">Reuters: Battle Over GMOs Heads to Canada`s High Court</a>