While Iran may have helped the Taliban and even AQ after 9/11 in some cases, and mainly to counter the US prescence in Afghanistan and to keep the Saudi/GCC bloc off balance, there is no evidence of any Iranian link to the 9/11 attacks.
Infact, there are more links between Pakistan and 9/11 after Afghanistan. But unforutnately, first IRaq and now Iran are being blamed and the gullible American public, by and large, just accepts it.
In 2003, a court ruled that Iraq was "party responsible" for 9/11 USATODAY.com - Lawsuit ruling finds Iraq partly responsible for 9/11
And ofcourse Bush in 2006 had to eat his own words when he declared that actually there was no link Bush: Saddam was not responsible for 9/11 | World news | guardian.co.uk
Infact, there are more links between Pakistan and 9/11 after Afghanistan. But unforutnately, first IRaq and now Iran are being blamed and the gullible American public, by and large, just accepts it.
In 2003, a court ruled that Iraq was "party responsible" for 9/11 USATODAY.com - Lawsuit ruling finds Iraq partly responsible for 9/11
And ofcourse Bush in 2006 had to eat his own words when he declared that actually there was no link Bush: Saddam was not responsible for 9/11 | World news | guardian.co.uk