Yeah, it's not the ones letting their cows wander and eat wild grass that are the problem. It's people buying feed that could be GMO and soaked in pesticides.

I'd personally guess it's probably actually the soybeans and alfalfa and corn. Farms without enough grazing land buying cheap feed to supplement or as their main feed. Or large farms that don't care and don't keep their animals in anything larger than a refrigerator box.

The bottom line is that it's ended up in large enough quantities that it's been a problem.

There could probably be other problems with grass clippings from some of the psychos with their painted lawns. They scare me.