Charlie's false friends

For a fleeting moment after the Charlie Hebdo massacre in Paris, it felt like all of Europe was united in revulsion at the cold-blooded murder of cartoonists in central Paris. But it soon became clear that being Charlie means very different things to different people.

First, there are those who never considered themselves Charlie in the first place – disaffected young Muslims from French suburbs who feel insulted by the crude caricatures of their religion in the satirical weekly, hothea...