These companies help parents try to pick their babies' traits. Experts are wary

NPR reporter Rob Stein examines the growing commercial availability of embryo screening services that allow prospective parents to select genetic traits and disease risk profiles across thousands of conditions, while noting expert skepticism about the practice's ethical implications. The piece is bylined to an established NPR reporter and draws on the outlet's reporting standards, though the metadata alone does not reveal specific named sources, data points, or expert quotes that would indicate depth of sourcing. The headline frames the story with cautionary language ("Experts are wary"), signaling a measured journalistic approach to a controversial topic rather than sensationalism. Watch for regulatory or legislative responses to genetic screening practices, as well as evolving scientific consensus on the predictive validity of trait selection for polygenic conditions.