Evil incarnate.
The Supreme Court determined that genetically modified seeds could be patented. It set a precedent for allowing a living organism to effectively be patented.
Monsanto has developed a variety of genetically modified seeds (mostly soy, corn, cotton, and canola), and then charge a pretty hefty price for these seeds. Not all farmers use these seeds. But many of these farmers who do not use those seeds have fields which are close to farmers who do use these seeds. This is especially the case when you consider that there are only about 13,000 organic farmers out of a total 2 million in the U.S.
The result is that cross-pollination occurs, and suddenly the farmer who didn't have genetically modified plants now has genetically modified plants.
So what does Monsanto do? They sue those farmers for using their patented seeds without paying for them.
And they won.
Fuckers.