Paper lanterns float in the Motoyasu River in front of the Atomic Bomb Dome in Hiroshima during a ceremony to commemorate the 70th anniversary of the atomic bombing. Photograph: Kazuhiro Nagi/AFP/Getty Images

It is impossible to conjure up the agony visited upon Hiroshima 70 years ago as you walk around the rebuilt city, with its airy shopping centres and t(...)

From left, Clement Attlee, Harry Truman and Joseph Stalin at the Potsdam Conference in July 1945

In a hotel room in Soho, the American historian Peter Kuznick starts telling me about the origins of his and Oliver Stone’s television series, The (...)