Pig in a Poke

Pig in a Poke, you know, means that something is sold or bought without the buyer knowing its true nature or value, especially when buying without inspecting the item beforehand.
is exactly what has happened regarding the so-called benefits of GMOs in terms of increased crop yields and reduced pesticide use, concepts Monsanto endlessly touts when selling said GMOs to farmers in the US but unsurprisingly, these claims don't jibe with reality.

To whit

But an extensive examination by The New York Times indicates that the debate has missed a more basic problem — genetic modification in the United States and Canada has not accelerated increases in crop yields or led to an overall reduction in the use of chemical pesticides.

Crop yield pix one, see any increase?

Or this?

On pesticide use, this claim is also refuted.

End result, Monsanto, in effect, owns the food supply through intense enforcement of patents due to genetic engineering while farmers in the US continue to buy a Pig in a Poke. Makes sense, right?

"What the real owners of the country don't want is people capable of critical thinking."
- George Carlin.