Genetically Modified Humans? No Thanks.

In an essay in Sunday's Outlook section, Dartmouth ethics professor Ronald Green asks us to consider a neo-eugenic future of "designer babies," with parents assembling their children quite literally from genes selected from a catalogue. Distancing himself from the compulsory, state-sponsored eugenics that darkened the first half of the last century, Green instead celebrates the advent of a libertarian, consumer-driven eugenics motivated by the free play of human desire, technology and markets. He argues that this vision of the human future is desirable and very likely inevitable.

To put it mildly: I disagree. Granted, new human genetic technologies have real potential to help prevent or cure many terrible diseases, and I support research directed towards that end. But these same technologies also have the potential for real harm. If misapplied, they would exacerbate existing inequalities and reinforce existing modes of discrimination. If more widely abused, they could undermine the foundations of civil and human rights. In the worst case, they could undermine our experience of being part of a single human community with a common human future.

Once we begin...