A tornado in Canada cut through fields filled with genetically modified canola plants. ?The tornado actually picked up the canola plants and actually wrapped them around these trees,? says farmer Vic Martens. The seeds from that crop were blown into other canola fields up to 6 ? miles away, raising new concerns about the uncontrolled spread of genetically modified seeds.
Brian Ellis, a professor of plant biotechnology, says the problem needs to be studied. ?This is something the regulators never even thought of. It just goes to show that you can?t control something once you get it out into real nature,? he says.