The UK has experienced more than a week of violent rioting, during which white nationalists have marauded through towns and cities, fighting with police and calling for borders to be closed to keep out immigrants. Gangs have intimidated non-white citizens and laid siege to hotels housing vulnerable asylum seekers. Arrests are underway and some people have already been jailed. Online disinformation has been a significant factor in these incidents, but the picture is complex. In this selection of articles, experts help us understand what happened to cause this dark episode. 1. The middle-aged radicals A particular demographic was in evidence…