This thread has me depressed, but not because of Monsanto. The sheer amount of ignorance and FUD around genetic engineering displayed here is mildly horrifying. I won't comment on Mansanto's business practices, but I will dispel some of the scientific misinformation being thrown about regarding genetic engineering.
First off, we've been genetically modifying food for 10,000 years. The difference is that now we use a scalpel instead of a sledgehammer. Take wheat. The wild progenitors of modern bread wheat are diploidic, meaning that they carry two copies of their genome, much the way we do. These varieties of wheat don't produce enough gluten to rise and make nice bread, though. The only way our ancestors were able to get bread to rise was through hybrids containing the full genomes of both predecessors, making them tetraploidic (four copies of a genome). More modern (i.e. last thousand years) varieties are hexaploidic. Thus, in the pursuit of a more useful crop, we have
tripled the genetic content of wheat. When you compare that to the movement of a single gene, it's insane to think that what we're doing now is "playing God" and what we were doing before was "natural".
A lot of environmental activists complain about the use of pesticides, forgetting that their use has saved the lives of a
billion people. Now, use of long acting pesticides like DDT have real negative consequences that cannot be ignored, and we should do what we can to reduce their use as long as we can maintain our food supply.
Bacillus thuringiensis (or Bt) is a bacteria that produces a toxin that only seems to affect pests. It's actually quite remarkable, as how the toxin is metabolized determines whether it is toxic. Bt is also a wide approved "organic" pesticide, and is considered incredibly safe both for humans and for the ecosystem. Bt corn, rather than requiring the spraying of bacteria on the plants, simply introduces the gene responsible for the toxin to the corn itself. It's use has led to an
incredible drop in pesticide use on corn in the US. To me, this is an incredible environmental victory, and one that really can't be ignored when talking about Monsanto.
Regarding cancer, allergies and other concerns: there is absolutely no evidence that GMO foods have anything to do with them. Suggesting that an over increase in cancer rates and the increase of use of genetic engineering are causally related is akin to arguing that
a lack of pirates causes global warming. The number one reason for an increase in cancer rates is that we're now all living long enough to get cancer. We've gotten so good at dealing with infectious disease, and we've greatly reduced mortality due to heart conditions, but you're still going to die of
something, so now it's cancer. There is absolutely zero evidence that genetic engineering of foods has anything to do with it. In terms of allergies, while it is theoretically possible that whatever protein is being introduced by the genetic modification, no one has ever reported such an allergy. It seems silly to freak out over something that has never appeared in over 20 years of feeding billions of people.
So this was a bit of a rant. There's a lot more I can say here (such as other GMOs that are benficially for both our health and the environment, such as golden rice), but I'll leave it at that for the moment.