An unknown intelligence agency intercepts a telephone call between alleged 9/11 mastermind Khalid Shaikh Mohammed (KSM) and his associate Ramzi bin al-Shibh. [9/11 Commission, 2004; 9/11 Commission, 3/18/2004] In the call, KSM and bin al-Shibh discuss the state of the 9/11 plot, in particular the fact that Ziad Jarrah, one of the proposed pilots, may drop out. They speak in a code, substituting unexceptional words for what they really mean. [9/11 Commission, 3/18/2004] KSM instructs bin al-Shibh to send the “skirts,” meaning money forwarded to bin al-Shibh by an associate of KSM, to “Sally,” meaning Moussaoui. [9/11 Commission, 7/24/2004, pp. 246] The reason for this is that “Teresa,” meaning Jarrah, is “late,” i.e. he is wavering and may drop out of the plot, due to possible conflicts with lead hijacker Mohamed Atta about Jarrah’s isolation from the conspiracy. It therefore appears that KSM is thinking of Moussaoui as a replacement for Jarrah. According to a 9/11 Commission memo, KSM says something like, “if there is a divorce, it will cost a lot of money.” Bin al-Shibh then tries to reassure him, saying it will be okay. The conversation also mentions “Danish leather,” an apparent reference to failed “20th hijacker” Mohamed al-Khatani (see August 4, 2001). [9/11 Commission, 3/18/2004] The agency which intercepts this call is never identified to the public, although the NSA is reportedly intercepting such calls to and from KSM at this time (see Summer 2001). The 9/11 Commission will mention the call in a staff statement and its final report, but will not mention that it was intercepted, merely citing detainee interrogations as the source of information about it. [9/11 Commission, 6/16/2004, pp. 16-17; 9/11 Commission, 7/24/2004, pp. 246, 530]