Jérémie Bréaud’s arrival at his town hall is spectacular. As soon as his black sedan comes to a halt, he quickly gets out of it, closely pressed by two bodyguards on the lookout. The young mayor (40) of Bron, a suburb of eastern Lyon, has been the target of death threats for six months. Last October, a week after the assassination of the teacher Samuel Paty slaughtered by a Chechen Islamist at the end of his college, tags in town promised him the same fate. On January 4, one could read on a construction fence: “Bréaud T mort décapitation”.