http://www.nytimes.com/2005/12/04/weekinreview/04basicB.htmlnyone who doesn't know what Mickey Mouse, Saddam Hussein, Dick Cheney and the odd volcano have in common better not be a pilot. It's the no-fly zone.
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Mr. Hussein got his without asking. The governors of several states wanted such zones over their nuclear reactors but were turned down. Same with the mayor of Chicago, who wanted one for the Sears Tower.
snip
The zones are most commonly designated "temporary flight restriction," or T.F.R., and established by the Federal Aviation Administration, sometimes on its own initiative and sometimes on someone else's. The zone for Mr. Cheney's house in St. Michaels, Md., extending out a nautical mile in radius and up 1,500 feet, was established "at the request of another government agency," said an F.A.A. spokeswoman, Laura J. Brown, who would not identify the other agency. But around Washington, the agencies that make up the Interagency Airspace Protection Working Group - Ms. Brown's, as well as the F.B.I., the Secret Service, the Transportation Security Administration, the Coast Guard and Norad - have a role.
Exactly how the government determines that the vice president is a more vulnerable target, or more valuable, than a nuclear plant, is not always clear to outsiders. "You have to balance the security need with the best available information, and being able to keep the airspace clear for commerce and everything else," Ms. Brown said.
whew! I love the priorities of our government. :sarcasm: