What we learned on September 11 is that the unthinkable is now thinkable in the world.

A lot of the things that until now seemed unthinkable are starting to be thinkable.

These three documents, this letter, is clear evidence linking the hijackers on the three separate flights on September 11,

Nothing remains great without a capacity to change and to accommodate the conditions of a changing world.

investigation could become a criminal investigation.

If the president has subverted that system which he was sworn to uphold, any president in that situation, I believe, would be susceptible to impeachment, you know, in my view, any president should consider resigning,