The true story of The Post: how the Pentagon Papers exposed America’s role in Vietnam
New Steven Spielberg film The Post tells story behind the 1971 intelligence leak that exposed governments’ lies

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The gripping story behind the 1971 leak of the infamous Pentagon Papers, which revealed a massive US government cover-up spanning four presidents and three decades, is revealed in a new film by Steven Spielberg.
Starring Meryl Streep and Tom Hanks, thriller The Post premiered yesterday in Washington DC, about a mile from the headquarters of the newspaper where much of the action is set.
Rolling Stone calls the film “one of best and tick-tock timeliest movies of the year”; a film that celebrates the “passionate bond between a free press and every thinking human being”.
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The movie opens across the US on 22 December, and in UK cinemas on 19 January. But what are the Pentagon Papers and what did they reveal?
What are the Pentagon Papers?
The 3,000-page narrative and 4,000 appended documents summarised the history of the US in Indo-China from the Second World War up until May 1968.
Crucially, the papers “disclosed that successive US presidents – from Harry Truman to Lyndon Johnson – had repeatedly misled voters about the war in Indo-China”, according to The Daily Telegraph.
They were commissioned in 1967 by then-US secretary of defence Robert S. McNamara, and leaked to the media by Daniel Ellsberg, a military analyst and research associate at the Massachusetts Institute of Technology’s Center for International Studies.
The Post in Spielberg’s film title refers to The Washington Post, whose journalists scrambled to expose the cover-up, along with reporters from The New York Times. The movie chronicles the newspapers’ legal battle with the US government to publish material that the administration wanted to remain top secret.
What did the papers reveal?
Significantly, the papers showed that Harry S. Truman’s administration provided military aid to France in its war against the Communist-led Viet Minh independence coalition, directly involving the US in Vietnam.
They revealed that in 1954, president Dwight Eisenhower prevented a communist takeover of South Vietnam, and set out to undermine the North Vietnam communist regime.
The papers also revealed that president Lyndon B. Johnson intensified warfare against North Vietnam, and ordered bombing in 1965, and that he covertly expanded military operations into Cambodia and Laos despite telling Americans that “we seek no wider war”, according to Encyclopaedia Britannica.
“Never before had voters been given such direct proof that they were being lied to,” says The Daily Telegraph.
In a TV interview in 1971, whistle-blower Ellsberg told CBS News anchorman Walter Cronkite that the US was to blame for the Vietnam War. The US “now bear the major responsibility, as I read this history, for every death in combat in Indo-China in the last 25 years”, Ellsberg said, according to the US News and World website.
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