The document and others previously obtained under the FOIA by the Archive have reopened a 34-year-old controversy about what Kissinger's office and the CIA knew about "Operation Condor" -- a clandestine rendition and assassination program among the Latin American military regimes led by Pinochet's Chile.

The Kissinger communique, for the first time, ties the former secretary of state to a decision to withdraw a warning to Chile and its co-conspirators against international political assassination.