Families, lawmakers and the general public may never learn the names of people who died in crashes linked to faulty ignitions in GM autos, whether it be 13 names or hundreds, legal experts said Wednesday. Even as Mary Barra, CEO of the nation's No. 1 automaker, was being grilled by Congress about who knew what and when about the defect that has led to millions of recalls, the company still has not provided the names of victims, except to lawyers, whose hands are tied by confidentiality agreements. That leaves families in the dark about whether their son or daughter, father, mother, wife or husband died because they fell asleep at the wheel, were intoxicated or because of a faulty 57-cent part that caused their vehicle to shut down and stopped the airbags from being deployed. "By not disclosing, families are left in the dark." "By not disclosing, families are left in the dark," said Lance Cooper, an attorney representing several families suing GM over the recalled cars. "They just need to come clean."