I must admit that I'm a bit confused as to how some people interpret the recommendations of the UN in one way or another. Certainly our read is that we should be taking a precautionary approach to this. Field trials should not take place.
In other words, releasing these things into the environment should not take place unless there is scientific data to assure the regulatory authorities that to release them would be a safe activity. Without that information, speaking for the Food Inspection Agency, we would not allow their release.