It thinks it can improve on nature by arbitrarily manipulating and transferring genes, and does not realize it has created monsters. It is a Frankenstein science in exactly the way Mary Shelley's genius portrayed it. A cloned human embryo has even been created by transferring the human genetic material into a cow's egg. Thankfully, they've destroyed it at day 14, the current legal limit. The original Dr. Frankenstein, at least, did not do it for money, while the Frankenstein science we have now is driven and blinded by profit.
Genetic engineering is a new departure from conventional techniques and introduces new hazards.
Eminent UK scientist Arpad Pusztai was recently victimised for calling attention to the research findings of his group, which suggest that the GM potatoes they were testing are toxic and that the toxicities are in the genetic engineering process. Pusztai's findings are not the first to indicate that the hazards may be inherent to the technology. But the evidence has been ignored, or dismissed by the protagonists. Many ecological and health impacts are well-known. Glufosinate causes birth defects in mammals, while glyphosate is now linked to non-Hodgkin's lymphoma.