US author Steve Coll spent years looking into Osama bin Laden’s family. Now, his new book provides a unique insight into the clan. SPIEGEL spoke with him about where the terrorist might be hiding, how his father got his start, and the unique romantic liasons pursued by one of his brothers. SPIEGEL: Mr. Coll, Osama bin Laden recently broke a long silence. He threatened Europe and called for the “liberation” of the Gaza Strip. How seriously should we take these missives? Do they tell us anything about him or about where he might be?