another related investigation involved the fate of the children of captured pregnant guerrillas, who were given up for adoption by the military junta. an estimated 500 children were involved. the investigation became controversial during the kirchner administration, as those involved had become adults and some of them refused to participate in dna testing. one of those cases was the noble siblings case, involving the adopted sons of ernestina herrera de noble, owner of the "clarín" newspaper. the kirchners advanced a bill in congress to make the genetic testing of suspected victims mandatory. although the measure had popular support, critics considered it a breach of the right to privacy, and politically motivated because of a dispute between kirchner and the "clarín" newspaper. the noble siblings tests in 2011 were negative, and the case was closed in january 2016, after kirchner left the presidency. hilario bacca, a confirmed son of disappeared guerrillas, appealed a judicial ruling that sought to change his name, asking to keep the name he had been using.