By 2002, this Scientific American commentary notes, Golden Rice was technically ready to go. Animal testing had found no health risks. Syngenta, which had figured out how to insert the Vitamin A-producing gene from carrots into rice, handed all financial interests over to a nonprofit organization, so there would be no resistance to the life-saving technology from GMO opponents who resist genetic modification because big biotech companies profit. Except for the regulatory approval process, Golden Rice was ready to start saving millions of lives and preventing tens of millions of cases of blindness in people around the
world who suffer from Vitamin A deficiency.
http://blogs.scientificamerican.com/guest-blog/2014/03/15/golden-rice-opponents-should-be-held-accountable-for-health-problems-linked-to-vitamain-a-deficiency/?print=true