epa05870366 The flags of Germany (L-R), Europe, DITIB (Turkish-Islamic Union for Religious Affairs) and the flag of Turkey flutter in the wind next to a DITIB mosque in Bad Vilbel near Frankfurt, Germany, 25 March 2017. DITIB is Germany’s largest Turkish Islamic group. Some of its preachers spied for the Turkish government, media reported in Germany. EPA/ALEXANDER BECHER