To all those who claim President Trump should stay out of what is happening in Iran: We do not live anymore in a world where each country is separated from the rest – and probably never have. All of us – and especially the head of states – have the moral duty to show their interest, commitment and if necessary support or involvement in what is happening in other countries. I am German. A lot could have been prevented had the head of other countries gotten involved sooner – be it in Germany or anywhere else in the world. We need to be the Sign of Contradiction to injustice!