Answer:
That means the person who told you that answer is not smart....
B. <em>1998</em>. It was in this year that Osama bin Laden co-signed a <em>fatwa</em> (a non-binding legal pronunciation made by a religious authority) with Ayman al-Zawahiri, stating that the killing of North American and their allies was an "individual duty for every Muslim", to "liberate the al-Aqsa Mosque and Mecca from their grip". In the same year a series of U.S. embassies bombings (by terrorist cells linked or incited by al-Qaeda), thorough East African countries killed hundreds of people.
I think it is building a new government. I don't have information or documents. I hope this helps. :)