lubkin at unreasonable.com
Sat Jul 19 23:27:54 UTC 2014
Israel and the United States have an interest in
preventing tunnels in. Prisons and prison
nations, like North Korea or the old East
Germany, have an interest in preventing tunnels out.
Are there any credible technologies, either
current or plausible future, that can stymie
tunneling by wealthy, motivated opposition along
ranges from (say) 10^2 to 10^6 meters at least
by anything less than a hypothetical shaped
nuclear charge, MNT disassemblers, or the sort of
large, expensive tunnel boring machine that is hard to obtain or conceal?
(Such a barrier appears in sf but I've never seen
one described to the level of credibility.)
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