Man, this genetic altering of the food chain is upsetting me! We just don't know what we are doing.

Modified genes from crops in a GM crop trial have transferred into local wild plants, creating a form of herbicide-resistant "super weed", the Guardian can reveal.
The cross-fertilisation between GM oilseed rape, a brassica, and a distantly related plant, charlock, had been discounted as virtually impossible by scientists with the environment department. It was found during a follow up to the government's three-year trials of GM crops which ended two years ago.

The new form of charlock was growing among many others in a field which had been used to grow GM rape. When scientists treated it with lethal herbicide it showed no ill-effects.

In case you don't now, I am pretty sure that rape seed is the real name that marketing does not like to use for the seed used in the production of canola oil.