From the [UK] Times:
A leading geneticist writing in the journal Nature predicts a dramatic increase in parental demand for genetically screened “designer babies” over the next decade.
David Goldstein of Duke University expects to see many more couples screening embryos for genetic variations that substantially raise the risk of common conditions like diabetes, heart disease, autism, schizophrenia and epilepsy.
Embryo screening, which involves pre-implantation genetic diagnosis, is currently used to identify mutations that lead inevitably to serious disease, like cystic fibrosis. Wider use of the process could encourage fresh controversy over the ethics of designer babies, as it would involve screening out embryos that have an elevated risk of developing disease but are otherwise healthy.
In his Nature article, Goldstein called for a broad public debate about the ramifications of widespread genetic screening. “We should think about an appropriate dividing line,” he told the Times. “Most people are in favor of allowing this when a disease is severe, but are more uncomfortable with marginal disease risks. It’s something we are going to have to think hard about.”