On Islambouli part of a cell with KSM, see Gertz’ 2002 book about the breakdown in intelligence that led to 9/11.
KSM took over from the Al Qaeda mililtary head Atef as head of the anthrax weaponization operation. (see emails to Atef about anthrax weaponization)
It is a matter of historical record that Islamboulli was part of a cell with KSM.
See Gertz’s 2002 book. He also addresses the al Hayat letter bombs to NYC and DC newspapers and people in symbolic positions which was the key to profiling the modus operandi.
And, so the usual intelligence or true crime analyst would ask:
Where in the world is Islambouli?
Who did he visit when he came to the US to plan the next attack, as described in the December 1998 Presidential Daily Brief to President Clinton that warned of a plannned attack involving airplanes and other means. (see PDB reprinted in 9/11 Commission Report). Everyone focuses on the PDB in the summer of 2001 directed to President Bush while forgetting that there was a PDB with the same substance from December 1998 to President Clinton.
The 9/11 Commission Report contains a copy of the declassified December 1998 PDB and discusses Islambouli.
Katie Crockett in a 2006 GMU doctoral thesis, notes:
“In addition, there should be a reasonable level of restriction on the type of information that can be published.”
If microbiologists in the field suggest that information being posted might help a bioterrorist weaponize anthrax, those should be deleted. I’ll defer to the experts who can raise the point or not as they see fit.