The bomb had been assembled, delivered, and detonated by a Kuwaiti named Ramzi Yousef, under the supervision of his uncle Khalid Sheik Mohammed, who would later be identified as “the principal architect” of the attack against the same buildings on September 11, 2001. Yousef had learned the art of making bombs from a manual written by the CIA for the mujahideen to use in their struggle against the Soviets. He was given the CIA instruction booklet while attending an al-Qaeda training camp in Khost, Afghanistan, in 1991 or 1992.
