I'm all for Ahmadinejad giving up being a 9/11 Truther. However, if Al-Qaida wants the credit for bringing down all three WTC buildings, perhaps they can explain how and why they came down, which is more than NIST can do. And perhaps they can explain how their pilot, who couldn't pass a test to fly a very simple, small plane, was able to fly a large commercial jet on a very challenging path into the Pentagon, which most pilots say is next to impossible for the best pilots to do. We are all waiting with baited breath.
And if Al-Qaida is unable to provide an adequate explanation, shouldn't that count against their being the sole party in the conspiracy? Perhaps they thought they were the sole party, never realizing that they were being used.