Daniel Ellsberg, Pentagon Papers whistleblower, dies aged 92

Analyst who leaked studies showing US government knew the Vietnam war was un-winnable became activist and writer

Daniel Ellsberg, a US government analyst who became one of the most famous whistleblowers in world politics when he leaked the Pentagon Papers, exposing US government knowledge of the futility of the Vietnam war, has died. He was 92. His death was confirmed by his family on Friday.

In March, Ellsberg announced that he had inoperable pancreatic cancer. Saying he had been given three to six months to live, he said he had chosen not to undergo chemotherapy and had been assured of hospice care.