When gunmen shot dead 12 people in the attacks on Charlie Hebdo magazine, the hashtag 'Je Suis Charlie' seemed to unify France. But for many young Muslims it was a symbol of their growing alienation from mainstream French society, where the right-wing Front Nationale are now the leading party for the under-35s. British journalist and comedian Shaista Aziz travels to our nearest neighbour to find out why the country has... see more