nanog mailing list archives

RE: $400 million network upgrade for the Pentagon


From: "Daniel Golding" <dgolding () yahoo com>
Date: Wed, 14 Aug 2002 16:54:20 -0400


Perhaps they have perfected the Cone of Silence?

http://www.cinerhama.com/getsmart/innovations.html

- Dan

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu]On Behalf Of
Scott Granados
Sent: Wednesday, August 14, 2002 4:09 PM
To: Al Rowland
Cc: nanog () merit edu
Subject: RE: $400 million network upgrade for the Pentagon



As I recall and definitely don't quote me on this:) but there are also
grids of wires in the walls which release broadspectrum noise electronic
noise for jamming small transmitters.  But only in certain rooms.  It
also strikes me that the pentagon is not going to have many interesting
conversations in there not nearly as interesting as some other locations
I won't list here.

Scott
On Wed, 14 Aug 2002, Al Rowland wrote:


"fold back" systems like Bose noise cancelling headsets depend on the
microphones being adjacent to each other. The further apart they are the
more difficult it becomes to "sync" the noise. A digital delay helps but
at some point of source divergence even it won't help.

Of course these measures are designed for inadvertent release of
information. Anyone with a window shouldn't be discussing things worth
eavesdropping on anyway. But in the real world...hence the air pipes.

Not that I would know anything about this sort of thing... ;0

Best regards,
_________________________
Alan Rowland


-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
Blake Fithen
Sent: Tuesday, August 13, 2002 3:13 PM
To: 'Brad Knowles'; 'gg'; 'Sean Donelan'; nanog () merit edu
Subject: RE: $400 million network upgrade for the Pentagon



Brad Knowles:
  The Pentagon has windows.  It also has an ancient system of air
pipes aimed at all of the windows...

<paranoia>

Is this sensitive info?   Couldn't someone (theoretically) aim a
"beam" at an unoccupied office and another at their objective
office then filter out the 'noise'?

</paranoia>

Sorry for the O.T.

--
blake



Brad Knowles, <brad.knowles () skynet be>

"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
     -Benjamin Franklin, Historical Review of Pennsylvania.

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r---(+++)* z(+++)





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