Folks,
Something that might slip through the back door is crops grown for fuels. They will have less scrunity other them compared to the ones for human consumption. Will they contaminate the other crops through, like live stock that has been genetically manipulated? Salmon farms have had to deal with this within the past several years. The species is made to resist infection and disease, making them a more dominant species, which take over the ones having to work with those natural circumstances. Thus destorying the original one. I'm not sure if the modified one can reproduce.

We are slowly destroying all of the natural cycles by removing plant and animal species for our comfort of life (or "quality of life"), but this could do it in a way that is not repairable.

Just a thought that has been sitting on the back of my mind for a while.