I'm sure someone can fill in the other references
The US State department released some "home" video tapes on December 13th 2001. The State department claim the tapes show Osama bin Laden and implicate him in the[[September 11, [September 11th Terrost Attacks]?. Some of the quotes (should we put the whole transcipt up? its not copyright?): 2001 Terrorist Attack]]. In the tape it appears Osama bin Laden had in-depth knowledge of the attack although only knowing of the actual attack a few days in advance. Following are some quotes translated by the US government. Should we but the whole transcipt up? Its not copyright?
Osama Bin Laden:
We calculated in advance the number of casualties from the enemy, who would be killed based on the position of the tower.
We calculated that the floors that would be hit would be three or four floors. I was the most optimistic of them all.
...Due to my experience in this field, I was thinking that the fire from the gas in the plane would melt the iron structure of the building and collapse the area where the plane hit and all the floors above it only. This is all that we had hoped for.
Unidentified Sheikh:
Allah be praised.
Osama Bin Laden:
.. We had notification since the previous Thursday that the event would take place that day. We had finished our work that day and had the radio on. It was 5:30 p.m. our time. ... Immediately, we heard the news that a plane had hit the World Trade Center ...
Sheikh:
Allah be praised.
The brothers, who conducted the operation, all they knew was that they have a martyrdom operation and we asked each of them to go to America but they didn't know anything about the operation
Osama Bin Laden:
After a little while, they announced that another plane had hit the World Trade Center. The brothers who heard the news were overjoyed by it.
... Muhammad (Atta) from the Egyptian family (meaning the Al-Qaida Egyptian group) was in charge of the group.
Sheikh:
A plane crashing into a tall building was out of anyone's imagination. This was a great job. He was one of the pious men in the organisation. He became a martyr. Allah bless his soul. (...)
Osama Bin Laden:
The brothers, who conducted the operation, all they knew was that they have a martyrdom operation and we asked each of them to go to America but they didn't know anything about the operation, not even one letter.
But they were trained and we did not reveal the operation to them until they are there and just before they boarded the planes.