...all this time??

Fiona Havlish, whose husband Donald perished in the World Trade Center North Tower on 9/11 said, "This is a historic day. For ten years we've wanted the truth to be known about who was responsible for our losses. Now we have that answer."

...The evidence was developed over a seven-year international investigation by the Havlish attorneys who pursued the 9/11 Commission's recommendation ... following the Commission's own eleventh-hour discovery of significant National Security Agency ("NSA") intercepts...

http://www.bloomberg.com/article/2011-12-23/aYoOcZ6NT3wo.html

...[a] May 14, 2001 memorandum from inside the Iranian government demonstrating that Iran's Supreme Leader, Ayatollah Khamenei, was aware of the impending attacks and instructing intelligence operatives to restrict communications to existing contacts with al Qaeda's Ayman al Zawahiri and Hizballah's Imad Mughniyah.

Apparently Iran's foreknowledge is a much more grave sin than the U.S.'s receiving, and completely ignoring repeated warnings from a dozen other countries prior to 9/11.

Oh, and look. One of the alleged plotters travelled through Iran on their way to Afghanistan. The nerve!

Documents obtained from German federal prosecutors showing that 9/11 coordinator Ramzi Binalshihb traveled to Iran in January 2001 on his way to Afghanistan to brief Osama bin Laden on the plot's progress.