According to the history based on documents released to the National Security Archive and reflected in the book Mohammad Mosaddeq and the 1953 Coup in Iran, the coup caused long-lasting damage to the U.S. reputation.
"The '28 Mordad' coup, as it is known by its Persian date [in the Solar Hijri calendar], was a watershed for Iran, for the Middle East and for the standing of the United States in the region. The joint U.S.-British operation ended Iran's drive to assert sovereign control over its own resources and helped put an end to a vibrant chapter in the history of the country's nationalist and democratic movements. These consequences resonated with dramatic effect in later years. When the Shah finally fell in 1979, memories of the U.S. intervention in 1953, which made possible the monarch's subsequent, and increasingly unpopular, 25-year reign intensified the anti-American character of the revolution in the minds of many Iranians."
The authoritarian monarch appreciated the coup, Kermit Roosevelt wrote in his account of the affair. "'I owe my throne to God, my people, my army and to you!' By 'you' he [the shah] meant me and the two countries—Great Britain and the United States—I was representing. We were all heroes."
On 16 June 2000, The New York Times published the secret CIA report, "Clandestine Service History, Overthrow of Premier Mossadeq of Iran, November 1952 – August 1953," partly explaining the coup from CIA agent Wilber's perspective. In a related story, The New York Times reporter James Risen penned a story revealing that Wilber's report, hidden for nearly five decades, had recently come to light.
In the summer of 2001, Ervand Abrahamian writes in the journal Science & Society that Wilber's version of the coup was missing key information some of which was available elsewhere.
The New York Times recently leaked a CIA report on the 1953 American-British overthrow of Mosaddeq, Iran's Prime Minister. It billed the report as a secret history of the secret coup, and treated it as an invaluable substitute for the U.S. files that remain inaccessible. But a reconstruction of the coup from other sources, especially from the archives of the British Foreign Office, indicates that this report is highly sanitized. It glosses over such sensitive issues as the crucial participation of the U.S. ambassador in the actual overthrow; the role of U.S. military advisers; the harnessing of local Nazis and Muslim terrorists; and the use of assassinations to destabilize the government. What is more, it places the coup in the context of the Cold War rather than that of the Anglo-Iranian oil crisis—a classic case of nationalism clashing with imperialism in the Third World.
In a review of Tim Weiner's Legacy of Ashes, historian Michael Beschloss wrote, "Mr. Weiner argues that a bad C.I.A. track record has encouraged many of our gravest contemporary problems... A generation of Iranians grew up knowing that the C.I.A. had installed the shah," Mr. Weiner notes. "In time, the chaos that the agency had created in the streets of Tehran would return to haunt the United States."
The administration of Dwight D. Eisenhower considered the coup a success, but, given its blowback, that opinion is no longer generally held, because of its "haunting and terrible legacy". In 2000, Madeleine Albright, U.S. Secretary of State, said that intervention by the U.S. in the internal affairs of Iran was a setback for democratic government. The coup is widely believed to have significantly contributed to the 1979 Iranian Revolution, which deposed the "pro-Western" Shah and replaced the monarchy with an "anti-Western" Islamic republic.
"For many Iranians, the coup demonstrated duplicity by the United States, which presented itself as a defender of freedom but did not hesitate to use underhanded methods to overthrow a democratically elected government to suit its own economic and strategic interests", the Agence France-Presse reported.
United States Supreme Court Justice William O. Douglas, who visited Iran both before and after the coup, wrote that "When Mossadegh and Persia started basic reforms, we became alarmed. We united with the British to destroy him; we succeeded; and ever since, our name has not been an honored one in the Middle East.
"https://en.wikipedia.org/wiki/1953_Iran ... t#Blowback