Operation Able Danger, which had been created to mine data and identify links between known terrorists, had a chart declassified on March 21, 2000. This chart linked double agent Ali Mohamed “inside a box with [al Qaeda leaders] bin Laden, [Ayman] al-Zawahiri, [Mohammed] Atef, Wadih El-Hage, and [bin Laden’s brother-in-law] Mohammed Jamal Khalifa. That box linked to the Sheikh [Omar Abdel] Rahman-Ramzi Yousef New York cell via the Egyptian Islamic Jihad and the Abu Sayyaf Group in the Philippines, which was also linked to the Yousef-KSM [Khalid Shaikh Mohammed]–[Bojinka plot conspirator Abdul Hakim] Murad-[co-conspirator Amin Shah] Wali Khan Manila cell responsible for the 9/11 attacks.” This link chart “is the smoking gun document proving that the government understood both Ramzi Yousef and Ali Mohamed were involved with the multiple acts of mass murder and terror perpetrated by bin Laden’s network, from the killing of Rabbi Meier Kahane in [November 5] 1990 forward.”
– Peter Lance, Triple Cross, Pages 341-342