dGpGJ Wrote:
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> There is no need for high voltage. All that's
> needed are a double fence with a 500m no man's
> land kill zone, sensors to detect motion and
> tunneling, tethered aerostats, and drones equipped
> with antipersonnel ordnance, non-lethal if
> politically necessary.
>
> The size and cost of sensors has come down a lot,
> along with their power requirements. The power
> requirements are not nearly as high as originally
> anticipated, and solar power could be used
> extensively.