Could someone create a respiratory virus that spreads throughout the earth's population gene editing everyone into perfection?
This later could be use to spread biologic weapons that would be engineered to not attack hosts cells with that particular signature.. as everybody else that were not "marked" would die..
We need to advance a lot morally and ethically as a societies, because i'm pretty sure atomic bombs will look like child stuff compared to the harm we could do with the things being discovered.
And giving the current trends, im very pessimistic about our future prospects. We have too much corruption by design, embedded in our cultural systems.