It's shocking this article doesn't take a more concerned stance on this incredibly dangerous technology. If one can without too much difficulty infect a population of rats with an infertility inducing gene, one can probably do the same for humans (or just an "undesirable" population of humans…)
More realistically, a terrorist group or rogue regime could threaten to "infect" wild populations of ... bees, wild fish, birds etc.
I don't get it. You can either make a gene drive spread to 100% of the population or make the offspring infertile. How do you do both?