There has been an explosion in consumer DNA testing over the last decade, with companies such as Ancestry and 23andMe selling customers at-home DNA test kits so they can discover their ethnicity admixtures or connect with relatives they never knew they had. For every story about a cold case murder being solved through genetic genealogy or an adoptee reuniting with their loved ones, there are also stories of family secrets being uncovered or someone discovering half-siblings they never knew they had.