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RE: $400 million network upgrade for the Pentagon

  • From: Scott Granados
  • Date: Wed Aug 14 16:11:44 2002

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: $400 million network upgrade for the Pentagon
> 
> 
> 
> > Brad Knowles:
> > 	The Pentagon has windows.  It also has an ancient system of air
> > pipes aimed at all of the windows...
> 
> <paranoia>
> 
> Is this sensitive info?   Couldn't someone (theoretically) aim a
> "beam" at an unoccupied office and another at their objective 
> office then filter out the 'noise'?
> 
> </paranoia>
> 
> Sorry for the O.T.
> 
> --
> blake
> 
> 
> 
> > Brad Knowles, <brad.knowles@skynet.be>
> > 
> > "They that can give up essential liberty to obtain a little temporary 
> > safety deserve neither liberty nor safety."
> >      -Benjamin Franklin, Historical Review of Pennsylvania.
> > 
> > GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E
> > W+++(--) N+ !w---
> > O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++)
> > X++(+++) R+(+++)
> > tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h---
> > r---(+++)* z(+++)
> > 
> 





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