The US support for the opposition culminated in the September 11th, 1973 coup that overthrew Allende, and resulted in the dictatorship of Augusto Pinochet.

Prior to his appointment to Ethiopia by John F. Kennedy, Korry was European editor for Look magazine and a United Press correspondent and European Editor in post-World War II Europe.

In 1954, Korry became the Chief United Press Correspondent for Europe after working as in the same position for Eastern Europe and as United Press Manager for Germany and France.

Korry fought to preserve his reputation against widespread press reports, many of them by journalists who had been his peers and friends during his reportorial career, and who colluded or sourced their information from staff members of Senator Church’s Committee to the effect that he had played an instrumental role in a military coup to depose and kill Allende, despite Korry's repeated public claims that he had known nothing of the CIA's plans to foment this, nor had he played any role in it.

In 1981, The New York Times, in what Time magazine called a "2,300-word correction," wrote that although the CIA had attempted to orchestrate a military takeover in Chile, "none of this, it is now evident, was known to Ambassador Korry".