9/11 Planned?

According to Mahmoud Ahmadinejad Leader of Iran 9/11 was planned but by us Americans rather then Afghanistinians. Personally, the Government may not be the most ethical thing in the world but to have supposedly "planned 9/11" thats bizarre! But boy did that stir up some emotions; making 33 delegations at the United Kingdom just up and leave during the accusations from Ahmadinejad. I mean supposedly staging the fact that we landed on the moon first, ok thats one thing. But to say that we as Americans who were the ones to be the most affected by it emotionally, mentally and physically is just wrong.. These accusations did come as quite a shock to all the delegates but not as a surprise. The last few meeting at the United Nations General Assembly the Ahmadinejad has been bringing up "lows" of the United States rather than paying attention to issues of his own country; hmmm thats weird? i wonder why he keeps aiming his "guns" at the U.S, maybe someones trying to re-direct attention for a reason.. Guilty Conscious anyone?