Recent Disclosure
A State Department document made available by the National Security Archive on 10 April 2010 reveals that a démarche protesting Pinochet's Operation: Condor assassination program was proposed and sent on 23 August 1976 to US diplomatic missions in Uruguay, Argentina, and Chile to be delivered to their host governments but later rescinded on 16 September 1976 by Henry Kissinger, following concerns raised by US ambassadors assigned there of both personal safety and a likely diplomatic contretemps. Five days later the assassination took place.
Read more about this topic: Orlando Letelier