“As millions upload genetic results to AncestryDNA and 23andMe and smaller firms, many are learning devastating news. They’re not their sister’s full sibling, not related by blood to anyone in their entire family, not who they thought they were.” Boston Globe: First came the home DNA kits. Now come the support groups. (When I was able to confirm that I am my parents’ real son, they suggested I try a couple more DNA services just to be sure…)