As far as i know they are, HOWEVER, they are located in the INNERAnd at the bottom of a very deep hole filled with many a nuclear bomb resistant thing in the way...
rings, not the outer.......
the attack on the pentegon is what makes me thinkI am thinking that whoever it is learned from the retaliation attempt the US tried to visit upon Osama bin Laden. So they bugger up the works with a wrench shaped like a 757 until they can make it to their warren.
it is some other NATION-STATE (possible Saddam?? he has threateneed as well
if you all recall) most terroists go for inocent civilians in mass, to make
a statement, or for figureheads of "American capatilism"/.......yopu don;t
attack the head of a nations military might....unless you need it out of the
way or paralyzed........
S.