$400 million network upgrade for the Pentagon
Vadim Antonov
avg at exigengroup.com
Tue Aug 13 23:54:34 UTC 2002
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
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