He famously leaked thousands of documents nearly half a century ago revealing that successive US administrations had lied to the public about the Vietnam war. "He was well aware of risking a long time in prison and a spoiled career," the jury said.
"Regardless of such consequences, his decision led to the removal of a mendacious government, a shortening of an illegal war, and an untold number of saved lives." His actions have been featured in several Hollywood films, including "The Pentagon Papers" in 2003 in which he was played by James Spader, and 2017's "The Post" featuring Matthew Rhys. The Olof Palme Prize is an annual prize worth $75,000 (65,500 euros) awarded by the Swedish labour movement.
It commemorates the memory of Sweden's Social Democratic prime minister Olof Palme, an outspoken international human rights advocate - and vehement opponent of US involvement in the Vietnam War - who was assassinated in Stockholm in 1986. Since 1987 the award has honoured human rights defenders around the world including last year's Nobel Peace Prize laureate, Congolese doctor Denis Mukwege, and former UN Secretary General Kofi Annan.