For three decades, Mary-Claire King has led efforts to improve genetic technologies that can be used to identify the stolen children of Argentina’s Dirty War. Her partnership with The Grandmothers of the Plaza de Mayo has yielded remarkable results.For three decades, Mary-Claire King has led efforts to improve genetic technologies that can be used to identify the stolen children of Argentina’s Dirty War. Her partnership with The Grandmothers of the Plaza de Mayo has yielded remarkable results.