A CIA-backed military coup overthrows the democratically elected government of Joao Goulart. The junta that replaces it will, in the next two decades, become one of the most bloodthirsty in history. General Castelo Branco will create Latin America's first death squads, or bands of secret police who hunt down "communists" for torture, interrogation, and murder. Often these "communists" are no more than Branco's political opponents. Later it is revealed that the CIA trains the death squads.