[50895] in North American Network Operators' Group
RE: $400 million network upgrade for the Pentagon
daemon@ATHENA.MIT.EDU (Vadim Antonov)
Tue Aug 13 19:57:44 2002
Date: Tue, 13 Aug 2002 16:54:34 -0700 (PDT)
From: Vadim Antonov <avg@exigengroup.com>
To: Brad Knowles <brad.knowles@skynet.be>
Cc: <nanog@merit.edu>
In-Reply-To: <a05111b50b97f3f75f213@[146.106.12.76]>
Errors-To: owner-nanog-outgoing@merit.edu
On Wed, 14 Aug 2002, Brad Knowles wrote:
>
> At 5:13 PM -0500 2002/08/13, Blake Fithen wrote:
>
> > 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'?
>
> Actually, I don't know for sure how it's implemented. They may
> have separate sound streams for each window. Moreover, this was a
> few years ago (I left in 1995), and there may have been changes since
> then. It would certainly be a lot easier to use individual speakers
> fed by electrical wiring, than pumping a lot of air around from a
> central location.
Even easier is to glue a piezoelectric transducer to the glass and feed
it some noise modulated to look like speech from a gadget which may cost
entire $30 in parts. Detecting IR laser emissions and sounding alarm is
also a good idea :)
--vadim
