This article was originally published in Vol. 6 No. 2 of our print edition. On a warm summer evening in late August 2024, a 26-year-old Syrian national named Issa al-Hasan carried out a mass stabbing at the ‘Festival of Diversity’ in Solingen, Germany, killing three people and injuring eight others.1 The attack took place in front of the main stage during a live performance by DJ Topic, who later revealed that security personnel had urged him to…