One good reason to buy a costly ($189 a year) subscription to The Economist, Britain’s international weekly, is regular coverage of science developments like American newsweeklies used to provide.

Journalists should be alert to a significant scientific scoop in the Nov. 9 edition. Sometime in 2020, the Genomic Prediction Company of North Brunswick, New Jersey — GenomicPrediction.com — plans to fertilize donor eggs with mixed sperm from two gay fathers in California. This couple will then pick embryos to be implanted in a surrogate mother on the basis of purported lower health risks identified through SNP tests (single-nucleotide polymorphism or “snip”).

If successful, such experiments could launch a relatively smooth new path for “playing God” to create human “designer babies.” Not long ago this sort of thing was the stuff of sci-fi novels by H.G. Wells or Aldous Huxley. Now the human species itself enters the public furor over animal and vegetable GMOs and “Frankenfood.”

Writers pursuing this should start with The Economist’s three-pager (behind pay wall), which details the biological complexities of SNP that The Guy must bypass here. There’s also this accompanying editorial. Genomic Prediction’s Web site has further explanation, and you’ll want to keep in contact with the company for the news pegs (973–529-4223 or contact@genomicprediction.com).

Of course, environment and behavior also affect health outcomes. Proposed disease prevention would provide what seems to be a benign start for the Snip Era, but we can likely expect eventual efforts to pick embryos for implantation on the basis of, say, height or intelligence, as humanity veers toward the breeding of a super-race. Applications will inevitably be tilted toward affluent parents, posing a moral quandary.

Also, The Economist reports, eventual efforts to maximize scores that enhance brainpower and such could “increase the risk of genetic disorders” through spillover into a DNA malady known as pleiotropy. SNP has already been tried for animal husbandry with other species of mammals. Since 2008, it has proven to boost milk yields in dairy cows. But, The Economist says, these experimental cows “have become less fertile and have weaker immune systems. … Genetic tinkering may sometimes improve things. But by no means always.” Humanity beware!