21.   An Air Force air controller, Tech Sgt. John Chapman, was killed.

22.   An air traffic controller allowed the plane to land, having forgotten that the truck was there.

23.   And air traffic controllers are struggling to efficiently guide planes through increasingly crowded skies.

24.   And President Ronald Reagan, a Republican, fired striking air traffic controllers and issued an executive order barring them for life from working again for the federal government.

25.   And, he added, the pilot did not suggest that he was puzzled by the landing instructions from the air traffic controller.

26.   As air traffic controller, he notified the pilots that the radar was down.

27.   As air traffic controllers watched one aircraft speed in the direction of the White House Tuesday morning, a frantic evacuation of the Executive Mansion began.

28.   As anxious air traffic controllers looked on, two blips on the radar screen slowly converged, until there was but one.

29.   As always, anyone dealing with health and safety, like air traffic controllers and meat inspectors, would remain on the job.

30.   Authorities said the FBI has a transcript of communications between the pilots and air traffic controllers for a portion of the flight that crashed in Pennsylvania.

n. + controller >>共 115
air 35.09%
traffic 34.00%
ground 8.58%
flight 8.35%
air-traffic 3.27%
mission 0.90%
airport 0.57%
launch 0.57%
logic 0.38%
arm 0.38%
air + n. >>共 541
travel 5.54%
attack 5.02%
pollution 4.75%
controller 4.63%
campaign 4.31%
traffic 4.02%
fare 2.87%
time 2.78%
system 2.54%
quality 2.38%
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