A chief propagandist for a Neo-Nazi network worked as a warden at Buckingham Palace. Matthew Gravill, a 26-year-old from Leicestershire, was giving visitors tours through royal state rooms until last year, an investigation revealed. ITV News identified him as a key player in two British fascist groups, Active Club England and Vanguard Britannica. Active Club England presents itself as a male fitness group but idolises Adolf Hitler and provides weapons training. Vanguard Britannica, which emerged in 2022, is more openly political, with members attending public protests. Neither group is proscribed by the government. Known in extremist circles by a pseudonym,...