After terrorists killed at least seven people in London on Saturday night, in the third attack in three months, Theresa May declared that “Enough is enough.” No right-thinking person would disagree with the Prime Minister. The problem is that there is no consensus on how to prevent young Muslim men raised in Britain from becoming mass murderers.
In France, the debate about this new form of terrorism is further advanced. For the past few years two intellectuals have duelled over the causes of jihadism in Europe. The first, Gilles Kepel, is a professor of Islamic studies at the prestigious Sciences Po. The second, Olivier Roy, is an ex-Maoist political scientist teaching at the European University Institute in Florence.














