Daniel Ellsberg, who has died aged 92, was the most important whistleblower of our times. His 1971 leaking of what became known as the Pentagon Papers showed conclusively that virtually everything the American public had been told by its leaders about the Vietnam war, from its origins to its current conduct, was false.
The leak itself did not end the war, and Ellsberg regretted not having come forward years earlier. He spent the rest of his life as a peace activist, encouraging others on the inside to reveal government malfeasance, and supporting those who did, including the 2003 GCHQ whistleblower Katharine Gun. But his leaks did result in a landmark decision in favour of freedom of the press, and, ironically, led to the downfall of the US president Richard Nixon. It is not unreasonable to set Ellsberg’s leak alongside President John F Kennedy’s assassination as the ground zero of today’s distrust of politics.
