The first thing that really hits you as you watch the movie “Flight 93” with gut-wrenching apprehension is the confusion. More frightening than anything is the realization that the government is so uncoordinated, unconnected, and confused that any terrorist, including one sitting in a cave, can bring this country to its knees. There were more than 4,200 planes flying across the skies of America on Sept. 11, 2001, and all the terrorists had to do was grab four. The most shocking truth is that the Federal Aviation Administration, the vaunted and powerful NORAD, the White House and the Pentagon, all...