6-year-old Aatos is keeping guard on his home block in Molenbeek, Brussels, through a periscope. The view is familiar and safe. There is the home yard where he plays ball with his best friend, Amine from next door. There are the woods where they like to look for frogs. There are the prayers at Amine’s mosque and the flying carpet with which the friends can travel to Finland or Morocco. There are the streets, the markets and the old neighbourhood ladies who scold the kids for climbing in the trees. But for the rest of the world, Molenbeek is a nest of Islamist terrorism.