Early 1999: KSM Allegedly Works on 9/11 Plot in Hamburg

Counterterrorism expert Rohan Gunaratna will later claim that Khalid Shaikh Mohammed (KSM) visits Hamburg at this time and meets with Mohamed Atta and Ramzi bin al-Shibh. Together, they make plans to carry out the 9/11 attacks in the US. [Gunaratna, 2003, pp. xxx] Other accounts claim KSM repeatedly visits Hamburg this year but do not definitively state who he meets (see 1999). The 9/11 Commission will later claim that the Hamburg al-Qaeda cell including Atta and bin al-Shibh will not be asked to join the 9/11 attacks until late 1999 in Afghanistan (see October 1999).