a. How was it possible the Pentagon was hit 1 hour and 20 minutes after the attacks began? Why was there no response from Andrews Air Force Base, just 10 miles away and home to Air National Guard units charged with defending the skies above the nation''s capital? How did Hani Hanjour, a man who failed as a Cessna pilot on his first flight in a Boeing, execute a difficult aerobatic maneuver to strike the Pentagon? Why did the attack strike the just-renovated side, which was largely empty and opposite from the high command?
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