Monsanto holds a patent on a strain of genetically modified corn and one for GM soy beans, both engineered to be resistent to a proprietary herbicide called "Roundup". The varieties of plants are called "Roundup ready". It is the cheapest and best way to grow both crops as the herbicide kills everything except their strain of corn or soy. For cash-strapped farmers the world over, this really is the only option if they want to grow their crops reliably.
At first, they made it so that their plants would not produce seeds, so that farmers would have to purchase new seeds every year. It's also essentially making the best adapted plants sterile. They were counting on every other variety of corn or soy dying out so that everyone in the world had to buy both plants from them. Fortunately this was challenged in court and "roundup ready" plants now produce seeds. Problem is, the courts also said that farmers using these new seeds were stealing from Monsanto corporation because the specific genetic strain was proprietary.
Let that sink in for a second. They own several sequences of genes.
These are the same people who tried to patent Basmati rice, a variety of rice that has been grown in India for centuries. For some reason, US law allows them to patent life
Do a Google search for something like "monsanto protest" or "monsanto activities" and see what you get.
As for them, I can only hope that they get what's coming to them.