From the legendary whistle-blower who revealed the Pentagon Papers, the first insider exposé of the dangers of America’s hidden, seventy-year-long nuclear policy. When former presidential advisor Daniel Ellsberg famously took the Pentagon Papers, he also took with him a cache of top-secret documents related to the United States' nuclear program in the 1960s. Here, for the first time, he reveals the contents of those now-declassified documents and makes clear their shocking relevance for today. The Doomsday Machine is Ellsberg’s account of the most dangerous arms build-up in the history of civilisation, the legacy of which threatens the very survival of humanity.