: Following widespread looting sprees and acts of violence occurring on the sidelines of the October 17 student protests, so-called “casseurs” seem to be the centre of attention. But the term, which comes from the French verb casser or “to break”, poses more questions than answers. The sociologist Paolo Stuppia examines the unprecedented situation many cities across France are having to contend with, and the complex combination of collective action whose motivations are unclear and the social media’s extreme agility. The Conversation: How unprecedented are the scenes of looting that we witnessed on the sidelines of the October 17 demonstrations? Paolo Stuppia: What may be unprecedented is the extent of the destruction of private property and the goods that have been stolen. It should be clear, however, that notall the looters can necessarily be sorted into identifiable groups, at least politically. Indeed, as the politician Xavier Crettiez, the sociologist Isabelle Sommier and the historian François Audigier [...]