Argentine Army General Jorge Videla (left), leader of the 1976 military coup that began the seven-year “Dirty War,” and former General Reynaldo Bignone, who ruled Argentina from 1982-1983, listen to the verdict during their trial in a courthouse in Buenos Aires, in July 2012. Photograph: Enrique Marcarian/Reuters

Former Argentine dictator Jorge Rafael Videla has died of natural causes while serving life sentences in prison for crimes against humanity. (...)