Islamist networks thrive in local British communities. Register for free to learn about their impact—and their impact on other Muslims https://www.economist.com/britain/2026/09/10/islamism-is-a-threat-to-britain-islam-is-not?taid=6aa8f65812a7680001d3eea8&utm_campaign=trueanthem&utm_medium=social&utm_source=twitter