The CIA seems not to understand permission given by President Bill Clinton to assassinate Osama bin Laden (see December 24, 1998). The instruction was contained in a memorandum of notification signed by Clinton authorizing the agency to use a group of tribal fighters to kill bin Laden. Previously, the tribal leaders had only been authorized to capture bin Laden, and this new memo marks an important shift in policy. According to author Philip Shenon, the memo is “written in stark language” and it makes it very clear “that the president was telling the tribal leaders they could kill bin Laden.” However, the actual memo is closely held within the CIA, and the 9/11 Commission will comment, “This intent [to have bin Laden killed] was never well communicated or understood within the agency.” Apparently, it is never even communicated to Michael Scheuer, head of Alec Station, the CIA’s bin Laden unit. Scheuer will later express his frustration at not being allowed to try to kill bin Laden, “We always talked about how much easier it would have been to kill him.” [9/11 Commission, 7/24/2004, pp. 133; Shenon, 2008, pp. 358]