Yes, I'm quibbling, but it bugs me when they say they cloned a sheep, when they didn't in the biological sense of cloning. I guess once again a jargon term has been taken into a real language where it gets its own meaning... like English did with many French words...

Also, from what I read, the effects of extranuclear DNA on development are completely unknown, not known to be completely absent. Yes, it remains in the mitochondria, but mitochondria have a lot to do with how a cell grows and functions... wish I knew how to do this in fine print, since it is a nitpicky aside. I still wonder who's cells they are thinking of using...