Well my response was in relation to what you said "There is zero evidence that GMOs pose any health risk.". I took a quick view over that list but I didn't see any referring to human consumption. Are there any? I am curious. That is more what I am concerned over. I don't care whether they harm rats because A. We are not rats. B. Rats don't live nearly as long as humans do.
There are a few performed on humans, sure, like http://www.nature.com/nbt/journal/v22/n ... bt934.html
. They're definitely much more rare than those on animals because they're costly and, frankly, not required. And again, we have real-world data, which is massive (billions of meals) and conclusively shows that GMOs are safe.
GMOs are subject to the same testing requirements as any other crop. If they're substantially equivalent to a known-safe crop and if new components (particularly proteins) pass a safety assessment, they don't need to be tested any further. If we didn't have the substantial equivalency exemption, we'd be constantly testing crops, even "natural" ones, every year.
Tests done on animals rarely correlate to usable data on humans.
That's incredibly untrue. Animal testing gave us vaccines, antibiotics, heart surgery, vascular sutures, anti-ulcer meds, insulin, anesthesia, pacemakers, leukemia and breast cancer treatments, epilepsy treatments, spinal cord and paralysis advancements, etc. The list goes on and on. It's a surprise when results DO NOT correlate in expected ways to humans. Researchers, especially now, are incredibly good at selecting animals that will provide the best correlation for a given experiment and at avoiding those that would be biologically unsuitable. It's not necessarily moral, but it's effective.
One of my main problems with GMO's is the little to zero regulation. They (the companies) determine whether the products are safe or not. The USDA seems complicit because despite all of their violations they still seem not to care. The USDA has broken a multitude of regulations and been fined themselves for not making sure that these companies are doing their environmental impact surveys and other things.
More regulation is fine with me (to a reasonable extent). I don't have an issue with cracking down on them, enforcing regulations more strictly, and gathering more evidence.