Nah, you gotta look bigger.
The monoculture practice (of agriculture and frankly, of humans) is an epidemic's wet dream just waiting to happen. Whether some kind of prion, antibiotic resistant staphylococcus, a fungus like the potato blight, or even an unstoppable pest of some sort, the practice is unsustainable, just as America is finally starting to demonstrate its bloated unsustainability and petroleum based fertilization regimes are starting to buckle and fall.
Yes, people are not starving technically, but ironically we are seeing a plague of the side effects of the diet. Obesity, diabetes, cardiovascular disease, tooth decay, depression, and overall malnutrition despite our world's wonderful technological and agricultural achievements. This is due to the wide availability of grains and soy, which all keep very easily (much more so than say, fruit or vegetables) and is a commodity. One could very easily blame the overwhelming costs of health care on the federal subsidy of grains (although that would be fairly simplistic).
Should we be worried about starving anytime soon? Most likely not. It would mean the fall of civilization before that. But it is more and more likely we'll be seeing malnutrition (in terms of micronutrients) more often in the future. I sound draconion when I suggest this, but sometimes I think this is a sign that we have reached the limit of our ability to populate...