Are There People Trying to Destabilize the Food Supply?

SEE HERE I'm not qualified to say whether this is credible or not. I don't know enough about the biology of e-coli or the way that bio-weapons are developed. The narrative sounds plausible, but the motivations are questionable and strange. Scaring people away from ordinary food? There are a lot of food supply manipulations going on however that are disturbing people, whether adding hormones to various animals in the food supply or genetically modifying seeds. People are concerned that these are essentially experiments with no very good way to anticipate the long range outcomes. If they turn out to be bad, we'll only learn of it down the pike a ways. It's playing craps with the food supply.