The self-reported race and ethnicity of people in the United States don’t always match their genetic ancestry. That’s the takeaway of a new paper that analyzed ancestries of people participating in the All of Us Research Program—the flagship genetics and health project of the National Institutes of Health (NIH) that has been working to sequence 1 million genomes from people across the U.S. Published today in The American Journal of Human Genetics, the new findings have implications for how genet...