Nuclear weapons: A disaster we cannot prepare for

In August 1945, the Japanese Red Cross and the ICRC came face to face with the grim reality of nuclear weapons. But as Johnny Nehme, the ICRC's weapons contamination expert explains, their destructive power has grown massively since Hiroshima - and the risk of escalation is much more real today. On the eve of the Second Conference on the Humanitarian Impact of Nuclear Weapons, taking place in Nayarit, Mexico, Nehme sets out the difficulties of mounting a relief operation in the immediate aftermath of a nuclear explosion, especially given what we now know about the risks of radiation exposure, and looks at some of the long-term consequences.