Thirteen lawsuits over the accidental spread of genetically altered rice could soon be combined into one legal action against Bayer CropScience AG, lawyers representing hundreds of rice farmers said Thursday. Attorneys told a panel of federal judges in St. Louis that the lawsuits should be tried collectively in front of one judge. But the lawyers mostly disagreed over which state should host the proceedings. The farmers from Louisiana, Arkansas and Missouri allege the rice market was hurt after Bayer's strain of genetically engineered Liberty Link rice was accidentally released from test plots in the United States.