Newly declassified papers on the U.S. government’s role in Argentina’s 1976-83 “Dirty War” have been released, detailing—among other things—how former secretary of state Henry Kissinger stymied attempts to end mass killings of dissidents.

The files were published just after Politico reported that Democratic presidential nominee Hillary Clinton is courting Kissinger’s support, among other Republican elites.

Kissinger lauded Argentina’s military dictatorship for its “campaign against terrorism,” which included the imprisonment, torture, and killings of tens of thousands of leftist activists and students, the files reveal.

“His praise for the Argentine government in its campaign against terrorism was the music the Argentine government was longing to hear,” one document states.

During a private meeting with the conservative diplomat group Argentinian Council of International Relations (CARI), Kissinger said that “in his opinion the government of Argentina had done an outstanding job in wiping out terrorist forces.”

U.S. ambassador to Buenos Aires, Raúl Castro warned that Kissinger’s praise for the military dictatorship “may have gone to some considerable extent to his hosts’ heads.”

“There is some danger that Argentines may use Kissinger’s laudatory statements as justification for hardening their human rights stance,” Castro said.

Clinton herself has come under considerable scrutiny for her role in other U.S.-backed coups in Latin America, such as Honduras.

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