Question: Which Major and Commander of the Argentine National Gendarmerie was involved in a special military intelligence service of the Argentine Army that collected information on and infiltrated guerrilla groups, human rights organizations, coordinated killings, kidnappings, and other abuses?
{'answer': 'Agustín Feced', 'supporting_facts': [['Agustín Feced', 0], ['Batallón de Inteligencia 601', 0], ['Batallón de Inteligencia 601', 1]]}