As for Monsanto. After the Organic Seed Growers brought a class-action suit against the company for unjustly suing innocent farmers whose crops were inadvertently cross-pollinated, I found it incredibly damning that the judge had to throw the case out because the organic farmers could not produce one single example of this ever happening[2]. Nevertheless, this case being dismissed for lack of a victim has actually been used as more proof of Monsanto's control over all branches and departments of government by the tin-foil hat brigade.
[1] http://ideonexus.com/2011/12/05/gmo-foods-and-the-promise-a-...
[2] https://docs.google.com/file/d/0B83aJv4L7U-iYzYyMzQxOTktZjY5...