CRISPR ins one of that "DOOM DAY" kind of tech... you mess 1 thing, and it´s over -.- ... first time i hear about it was during the zika virus ins Brazil , they wnat to reliase genetic modificated CRISP mosquitos ... to not reproduce... them they tink more about it and.... well... it could eradicate the hole species or worse !!! so... 50 human may be born with deadly brain bad formation... or doomday .... they chose to not relise the moskitos ... scare...