Using lasers to communicate

[jamesd at echeque.com]

At 12:03 AM 2/16/96 -0800, gw wrote:
> 50% mirrors picking off
> those laser beams would do it, and you could not detect the resulting
> attenuation as distinct from naturally ocurring attenuation and variation.  

Assume, as seems reasonable, that I point my laser from the roof of my house
to an ISP relay station located on a tall building or a nearby mountain.

An interception device will stick out like dogs balls.  Whoever wants to tap
my line is going to have to build a tower.
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