Mohamed al-Zawahiri, younger brother of Osama bin Laden's successor, Ayman, made a particularly intriguing statement in Cairo last month. Talking to that wonderful French institution Le Journal du Dimanche about Mali, he asked the paper to warn France "and to call on reasonable French people and wise men not to fall into the same trap as the Americans. France is held responsible for having occupied a Muslim country. She has declared war on Islam." No clearer warning could France have received.