> One of the anti-GMO arguments is that you don't want to get a knock on your door from Monsanto for accidentally having a field next to your Monsanto-loving neighbour.

Except that it's never happened, to my knowledge. Monsanto has sued farmers for using their seeds illegally, and in those cases it was shown that the farmers did so knowingly -- accidental cross-contamination has never been sued over. For instance, in one case a farmer claimed accidental cross-contamination while using Roundup on the same crops (which would've killed non-GM crops); in another, the field was found to be nearly 100% GM crops, a virtual impossibility unless seeds were explicitly and knowingly planted.

Monsanto does many things that people can take issue with (e.g. patenting seeds, which isn't reserved for GM crops, mind you), but this is pure, unadulterated bullshit.

Edit: C.f. http://www.npr.org/blogs/thesalt/2012/10/18/163034053/top-fi...