A breakthrough in genetic technology has given humans more power than ever to change nature. It could help eliminate hunger and disease; it could also lead to the sort of dystopia we used to only read about in sci-fi novels. So what happens next?Help us meet the Freakonomics Radio listener challenge. If 500 of you become sustaining members at just $7/month before June 30th we'll unlock an additional $25,000 from the Tow Foundation. Become a member now!