Recently, President Ahmadinejad of Iran has made remarks describing the 9/11 events as "suspect":
"Four or five years ago a suspect event took place in New York," Ahmadinejad said, in an address carried live on state television.
"A building collapsed and they said that 3,000 people had been killed, whose names were never published."
"Under this pretext they (the United States) attacked Afghanistan and Iraq and since then a million people have been killed," said the Iranian president.
This has kinda ticked off al-Qaida, who are damn proud of having pulled it off and don't like the idea that the President of Iran is insinuating that they never did.
Al-Qaida's No. 2 leader issued a new audiotape Tuesday accusing Shiite Iran of spreading a conspiracy theory about who carried out the Sept. 11 attacks to discredit the power of the Sunni terrorist network.
One questioner asked about the theory that has circulated in the Middle East and elsewhere that Israel was behind the 2001 attacks on the World Trade Center and the Pentagon.
Al-Zawahri accused Hezbollah's Al-Manar television of starting the rumor. "The purpose of this lie is clear -- (to suggest) that there are no heroes among the Sunnis who can hurt America as no else did in history. Iranian media snapped up this lie and repeated it," he said.