Al Qaeda (AQ) has evolved into a significantly different terrorist organization than the one that perpetrated the September 11, 2001, attacks. At the time, Al Qaeda was composed mostly of a core cadre of veterans of the Afghan insurgency against the Soviet Union, with a centralized leadership structure made up mostly of Egyptians. Most of the organization's plots either emanated from the top or were approved by the leadership. Some analysts describe pre-9/11 Al Qaeda as akin to a corporation, with Osama Bin Laden acting as an agile Chief Executive Officer issuing orders and soliciting ideas from subordinates.