In 1994, fellow author Dr John Fagan returned grant money of USD 614,000 to the National Institutes of Health, after concerns about the safety and ethics of genetic engineering. “Crop genetic engineering, as practiced today, is a crude, imprecise, and outmoded technology. It can create unexpected toxins or allergens in foods and affect their nutritional value,” he warns.
“Recent advances point to better ways of using our knowledge of genomics to improve food crops, that do not involve GM.” Over three quarters of GM crops are intended to tolerate spraying with herbicides, which have created herbicide resistant strains, the so-called superweeds.
In addition, these toxic products have been linked to birth defects and cancer in epidemiological studies. “These findings fundamentally challenge the utility and safety of GM crops, but the biotech industry uses its influence to block research by independent scientists and uses its powerful PR machine to discredit independent scientists whose findings challenge this approach,” explains Dr Fagan.
Check out the report linked below. I've only read part of it, but what I've read worries me. What are we eating and what are we feeding our children?:
GMO Myths and Truths