Bush's Behaviour on the Morning of 9/11

What is more consistent with Bush's behaviour on the morning of 9/11 at the Booker elementary school in Florida:

a) an unexpected and horrible terrorist attack of unknown dimensions,

or

b) an expected NORAD highjacking exercise of known dimensions that has somehow gone horribly wrong?


Granted, Bush's behaviour doesn't prove anything, but as far as I can see, Bush and his people clearly weren't as surprised or worried about the attack as one would expect if it was a huge unknown entity.