Henry Kissinger has long been accused of denying and/or downplaying the danger of the covert assassination plan Operation Condor, and the Los Angeles Times has a story about a newly declassified document that gives even more weight to these accusations, suggesting that Kissinger canceled sending a cable that might have alerted officials to the plot to assassinate Orlando Letelier in Washington DC: Kissinger cable heightens suspicions about 1976 Operation Condor killings.

A newly declassified document has added to long-standing questions about whether Henry Kissinger, while secretary of State, halted a U.S. plan to curb a secret program of international assassinations by South American dictators.

The document, a set of instructions cabled from Kissinger to his top Latin American deputy, ended efforts by U.S. diplomats to warn the governments of Chile, Uruguay and Argentina against involvement in the covert plan known as Operation Condor, according to Peter Kornbluh, an analyst with the National Security Archive, a private research organization that uncovered the document and made it public Saturday.

In the cable, dated Sept. 16, 1976, Kissinger rejected delivering a proposed warning to the government of Uruguay about Condor operations and ordered that “no further action be taken on this matter” by the State Department.

Five days after Kissinger’s message, Chilean exile Orlando Letelier and an American colleague were killed in Washington’s Embassy Row in a car bombing later tied to Chilean secret police working through the Condor network. The killings are considered one of the most brazen attacks ever carried out in the capital.

“The document confirms that it’s Kissinger’s complete responsibility for having rescinded a cease-and-desist order to Condor killers,” said Kornbluh, author of a 2004 book on Chilean dictator Augusto Pinochet.