Isn't much of this, old news?
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The 9/11 Commission Report stated that 8 to 10 of the hijackers previously passed through Iran and their travel was facilitated by Iranian border guards.
[135][137] The report also found "circumstantial evidence that senior Hezbollah operatives were closely tracking the travel of some of these future muscle hijackers into Iran in November 2000."
[137] Judge
George B. Daniels ruled in a federal district court in Manhattan that Iran bears legal responsibility for providing "material support" to the 9/11 plotters and hijackers in
Havlish, et al. v. Osama bin Laden, Iran, et al.[138][139] Included in Judge Daniels' findings were claims that Iran "used front companies to obtain a Boeing 757-767-777 flight simulator for training the terrorists",
Ramzi bin al-Shibh traveled to Iran in January 2001, and an Iranian government memorandum from May 14, 2001 demonstrates Iranian culpability in planning the attacks.
[138] Defectors from Iran's intelligence service testified that Iranian officials had "foreknowledge of the 9/11 attacks."
[140] By contrast, the 9/11 Commission "found no evidence that Iran or Hezbollah was aware of the planning for what later became the 9/11 attack. At the time of their travel through Iran, the al Qaeda operatives themselves were probably not aware of the specific details of their future operation." In addition, both bin al-Shibh and
Khalid Sheikh Mohammed denied "any relationship between the hijackers and Hezbollah" and "any other reason for the hijackers' travel to Iran" besides "taking advantage of the Iranian practice of not stamping Saudi passports."
[137]
Responsibility for the September 11 attacks - Wikipedia