Sixty years ago on Aug. 6th the city of Hiroshima was destroyed by one single atomic bomb, a weapon produced by the most advanced and expensive scientific project of its time. Today there are terrorist groups who in the near future might have the capacity and the wish to explode a nuclear bomb with the same terrifying effect as the Hiroshima bomb. An expert group has for NATO described and in summary form published a study on the possibility and consequences of a terrorist nuclear explosion in a big city. The study was produced by members of Centre for Strategic and International studies in Washington and Nuclear Threat Initiative, led by the former senator Sam Nunn. As example they choose a detonation in the headquarters of NATO in Brussels, Belgium. The study, named Black Dawn, was recently presented for the NATO parliamentarians. I participated in the presentation as a medical...