"If they hadn't shot down the fourth plane it would've hit the dome," Stone, a Navy officer, said in his opening remarks.

Bin Laden driver knew 9/11 target: prosecutor
Wed Jul 23, 2008 4:33am EDT
http://www.reuters.com/article/newsOne/idUSN2230096620080723

Hat tip to "Alfred Joe's Boy" at Rigorous Intuition forum:
http://rigorousintuition.ca/board/viewtopic.php?t=19444

Navy Vessel Made From Twin Towers

Military Remembers Sept. 11 with USS New York

http://abcnews.go.com/Technology/story?id=4365449&page=1

According to the 9/11 Commission Report, "On 9/11, the defense of U.S. airspace depended on close interaction between two federal agencies: the FAA [Federal Aviation Administration] and the North American Aerospace Defense Command (NORAD)." NORAD in particular is tasked with defending the airspace over North America and protecting the continent. The attacks on 9/11 all took place within its Northeast Air Defense Sector (NEADS), which, according to the 9/11 Commission, was able to call upon two 'alert' military sites for assistance: Otis Air National Guard Base in Cape Cod, Massachusetts and Langley Air Force Base in Hampton, Virginia. Each of these had just one pair of fighter jets at the ready. "Other facilities, not on 'alert,' would need time to arm the fighters and organize crews." [1]