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FW: Analysis from a JHU CS Prof
From: "Borger, Ben" <bborger () platinumsystems net>
Date: Thu, 13 Sep 2001 15:31:37 -0500

At 06:05 PM 9/12/2001, you wrote:

Quite more interesting is why nobody noticed that 4 airliners where
almost the same time.

Not surprising.  Aircraft are "flight followed" by a series of control 
centers across the nation, each responsible for a given chunk of 
airspace.  Something happening in an area controlled by Center "A", for 
example, wouldn't be passed on to Center "B" (which has it's own problems 
to work) unless it impacted Center "B".  Furthermore, unless someone TELLS 
Center they're being hijacked, there's no way for a controller - looking at

a blip - to know what's up.  And any controller can tell you that pilots do

Somehow the people who did this managed to turn off the transponders on
these planes.  Normally a plane flying in controlled airspace squawks a
unique id and altitude which is decoded by their radar and associated with
each blip.  Sometimes low cost homebuilts/ultralights fly with no
transponder, but Boeings <sarcasm>usually</sarcasm> do.  If you set a
transponder to 7500, it means you're being hijacked.

BTW if you see your friend Jack at the airport, be sure to say, "What's up,
Jack!" instead of "Hi Jack!"

So how do you deal with this?  Blowing up a whole country?  I wonder if the
US should adopt a 'fire w/ fire' approach and invest in intelligence, covert
ops and assassinations.  It would seem that it is open season on terrorism
by every democratic nation, I expect to see very conspicuous Samuel Jackson
style ass whoopins on whiny extremist groups to satiate America's anger.
Terrorize the terrorists.

Oh yeah, obviously Echelon should probably have MacOS loaded on it.


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