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In 1962 the world teetered on the edge of nuclear destruction as the Presidents of the USA and the Soviet Union fought over Soviet warheads installed on the islands of Cuba. In Nuclear Folly: A New History of the Cuban Missile Crisis, the historian Serhii Plokhy retells the tortuous decision-making and calculated brinkmanship of John F Kennedy, Nikita Khrushchev and Fidel Castro. He tells Amol Rajan it was ultimately fear that saved the planet, and it\\u2019s time to draw lessons from the many mistakes that were made at the time.

The Cold War era did produce a nuclear arms-control agreement \\u2013 the Intermediate-Range Nuclear Forces Treaty \\u2013 signed in 1987. But the nuclear physicist and former director of the UN Institute for Disarmament Research Patricia Lewis says that in 2019 the United States and Russia withdrew their support. Lewis, who now leads the International Security programme at Chatham House, asks whether we are now entering a second nuclear age.

The BBC journalist Sarah Rainsford visited the sites of the Soviet Union's nuclear stations in Cuba when she was posted there in 2011. She wrote about her experiences and the end of the Castro era in Our Woman in Havana. Rainsford is now the BBC\\u2019s Moscow correspondent and explores how far Khrushchev\\u2019s political scheming and disinformation compare to the strategy of President Putin.

Producer: Katy Hickman