The French city of Nice is reeling from yet another terrorist attack, after three people were murdered at a church by a 21-year-old Tunisian migrant. According to the city's mayor, the bloodshed is the result of "Islamofascism". But is this a helpful term? And why should we avoid referring to these sorts of attacks as the actions of "lone wolves"? We sit down with Peter R. Neumann, Director of the International Centre for the Study of Radicalisation at King's College London.