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A question about GMOs?

I was reading about the use of genetically modified foods and was surprised to read that a gene for insect death derived from the bacterium Bacillus thuringiensis is introduced in sweet corn so that to produce their own insecticide (the toxin to insects, insect attacks is less likely). I am not a scientist (just an "armchair botanist), but I think we're playing Russian roulette with our supplies food. I also wonder how it can be harmful to pollinators such as butterflies and bees. What are your views on this controversial issue?

The Cry toxins produced by B. thuringiensis are specific to moths, butterflies, flies, mosquitoes and beetles. They have no major effect on insects pollinators (like bees). In addition, tissue specific promoters can be used for the inserted genes, which means that only some tissues actually contain toxins (so it will not be present in pollen, for example). Other factors to consider are: – if not using Bt toxin, improved transgenic crops, we would to spray large quantities of non-specific insecticides that * is * effect of pollinating insects. – The toxins are, of course, contained within the crop plant and are not released into the environment. So only the pests that really the goal of crops are made. Other insects in the area are not made.