I personally reckon that if the deliberate and avaratious mismanagement of the market place is anything to go by that GMO crops with patented terminator genes aimed at recouping initial R&D expenses, or more importantly prompting repeat sales, will lead to the mass failure of crops causing famine, that's even before a potential mutation in the gene is considered and its migration. Crops and food production are one of those ultimate can not be individualised deals like transmutable diseases which are already fought with collective vacinations.