Two sides debating the ethics of editing a baby’s genes.
An example of the interesting debate:
“Let us imagine two prospective parents, set A, each carriers of the Tay-Sachs gene. They have a one-in-four chance of passing two copies of the gene onto a child. Doing so is a death sentence for the child by its eighth birthday.
Now imagine two other prospective parents, set B. These parents decide that on their child’s eighth birthday, they will sit with the child and several friends for a nice game of Russian roulette. The only difference between A and B is that with most handguns, B has given its child a slightly better chance of survival.
I use the graphic analogy to drive home the essential point: Parents who knowingly risk passing on bad genes to a child can cause real harm. They are gambling with the life of another human being. In any other context, such behavior would be instantly recognized as abuse and protective state intervention would be not only defensible but also obligatory. The fancy phrases about dignity and fundamental liberty and so forth are what Peter Singer called “the last resource of those who have run out of arguments.”