You go up this air tower, which is 95 feet above the ground.
By the runway, a brand new air traffic control tower needed to be built.
But some security researchers imagine a less sensational, if equally troubling possibility: Hundreds or thousands of aircraft radioing their approach to an air traffic control tower, and no way to sort through which are real and which are ghost plane signals crafted by a malicious hacker.
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Petersburg airport's air-traffic control tower, which then notified Tampa International Airport, Tampa police said.
"I suspect he sometimes thinks these lawyers are talking in their artificial world with their artificial constructs, and in some ways, he's like a breath of fresh air in the ivory tower, " says Thomas Leary, the other Republican on the FTC.
The city's international airport was also closed to flights at one point, and staff began building a temporary control tower, as air traffic facilities were switched to emergency power sources.
Three cats climb to the top of the bell tower and sniff the air.
Air traffic operator at Nottingham Airport, Dave Tower, said "aviators could become confused about who to call and what radio frequencies to use".
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In the fort's courtyard are several small wooden boats and traditional barasti (palm-leaf) houses, including the primitive Al Kaimah, and the summerhouse Al Areesh with traditional wind-tower (barajeel) "air conditioning".
The agency said it had no choice but to subject most of its 47, 000 employees, including tower controllers, to periodic furloughs and to close air traffic facilities at small airports with lighter traffic.
Aviation experts contend that even if intruders were able to access a control tower and disrupt operations, the nation's air traffic control system is designed with multiple back-ups so that other facilities could pick up control of the affected air space.
And as she headed back toward her apartment, four blocks from what was soon to be known as ground zero, the south tower collapsed, sending a plume of debris into the air and straight down her street.
Brighton West's remains may be incorporated into a gigantic viewing tower, the i360, in which people will rise in the air, on a vertical pier, rather than walk on water.
The company also said it was planning to increase the size of its air passenger terminal at Land's End, and that a new control tower would make flights less weather-dependent.
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The water tower is still standing and you can read the blue lettering on it from the air.
Tower closures would not necessarily result in airport closures, because some aircraft can land without air traffic control help, and those that need controller help can communicate with more distant FAA facilities.
CNN: Airports can make case to keep their control towers open
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