Children perform a die-in in front of the Atomic Bomb Dome at Peace Memorial Park in Hiroshima last week on the 70th anniversary of the world's first atomic bombing.Children perform a die-in in front of the Atomic Bomb Dome at Peace Memorial Park in Hiroshima last week on the 70th anniversary of the world’s first atomic bombing.

I’ve been in Britain for the past two weeks. I watched here, as you watched in Australia, the moving ceremonies as the citizens of Hiroshima and Nagasaki remembered the destruction of their cities 70 years ago by the only two atomic bombs that have ever