David Shute Posted over 1 year ago Public Response to GMOs Hard evidence of the unintended harmful consequences does exist and it is not hard to find with a search. While the plant/food itself may not be harmful, such things as the impact of genetically modified plants on the diversity of plant species is - the leakage of GMO DNA into otherwise untouched varieties is well documented. This diminishment of diversity reduces the ability to withstand heretofore unknown threats. Such modifications as the ability to grow in an environment rich in RoundUp (like a lot of corn grown in the US thanks to Monsanto) has resulted in those feed crops absorbing more of the active killing ingredient in RoundUp and thus causing cancer in the organisms including humans that eat it. Then there is the perhaps more insidious impact of companies such as Monsanto becoming sole source for seeds; the legal and financial stranglehold this corporation is placing on farmers threatens our food supply just as much as the genetic modification. We humans have long genetically modified plants and animals - that's how we get cocker spaniel from wolf. Modern techniques are just much more controlled and effective. We humans do not, however, know how to control the spread of those new genes into the larger environment and therein lies the greatest threat.