According to reports in 2006, resulting from trials of top officials in Argentina, Operation Condor was at its peak in 1976 when Chilean exiles in Argentina were threatened; many went underground or into exile again in other countries. Chilean General Carlos Prats had been assassinated by DINA in Buenos Aires in 1974, with the help of former CIA agent Michael Townley. Cuban diplomats were assassinated in Buenos Aires in the "Automotores Orletti" torture center, one of the 300 clandestine prisons of the dictatorship. These centers were managed by the "Grupo de Tareas 18", headed by former police officer and intelligence agent Aníbal Gordon, earlier convicted of armed robbery, who reported directly to General Commandant of the SIDE, Otto Paladino.