You know the contamination is a serious problem when farmers are preemptively suing Monsanto to protect themselves.
"On 30 March 2011 a group consisting of over 60 family farmers, seed businesses and organic agricultural organizations in Canada and the US, filed a lawsuit against Monsanto Company to challenge the chemical giant’s patents on genetically modified seed. The plaintiffs say they are being forced to sue pre-emptively to protect themselves from being accused of patent infringement should they ever become contaminated by Monsanto’s genetically modified seed.
The case, Organic Seed Growers & Trade Association, et al. v. Monsanto, was filed in federal district court in Manhattan"
http://www.pubpat.org/assets/.../see...-Complaint.pdf