AP got the juice right here. Please go and read it all, but here are some timeline excerpts:
WASHINGTON – As secretary of state, Henry Kissinger canceled a U.S. warning against carrying out international political assassinations that was to have gone to Chile and two neighboring nations just days before a former ambassador was killed by Chilean agents on Washington's Embassy Row in 1976, a newly released State Department cable shows.
In the Sept. 16, 1976 cable, the topic of one paragraph is listed as "Operation Condor," preceded by the words "(KISSINGER, HENRY A.) SUBJECT: ACTIONS TAKEN." The cable states that "secretary declined to approve message to Montevideo" Uruguay "and has instructed that no further action be taken on this matter."
Kissinger has dealt with the issue indirectly. Writing in defense of Kissinger in 2004 when the issue arose, William D. Rogers, Kissinger's former assistant secretary of state, said Kissinger "had nothing to do with" a Sept. 20, 1976 cable instructing that the warnings to Chile, Argentina and Uruguay be canceled. Rogers died in 2007.
"You can instruct" the U.S. ambassadors "to take no further action" on the subject of Operation Condor, said the Sept. 20 cable by Harry Shlaudeman, assistant secretary of state for Inter-American affairs, to Shlaudeman's deputy.The next day, on Sept. 21, 1976, agents of Chilean Gen. Augusto Pinochet planted a car bomb and exploded it on a Washington, D.C., street, killing both former Ambassador , and an American colleague, Ronni Karpen Moffitt. Letelier was one of the most outspoken critics of the Pinochet government.