It’s 70 years since the bombs were dropped on Hiroshima and Nagasaki and yet there has been no rush to commemorate this anniversary. It’s perhaps not surprising. Who would choose to recall the events of 6 August 1945 when the world first witnessed the effects of nuclear warfare? Yet the absence of date-setting, the annual forgetting, makes it appear that we’re much less keen to remember something that might make us feel uncomfortable or discredit us.