The old line that “just because you’re paranoid doesn’t mean they’re not out to get you” has a chilling effect in the context of the rise of the far right in Europe. Concerns over the threats posed by destabilising reactionary forces have been around for a long time, but ignoring them can only play into their hands. The arrests of 25 people in raids across Germany on suspicion of plotting to overthrow the government underlines why we dare not dismiss these groups too readily. The radical group known as the Reichsbuerger movement were broadly seen as crackpots, but crackpots too...