I worked, in the 1980s, at Citicorp's R&D center in California, during
   the transition from AT&Ts national microwave communications backbone to
   fiber optic. I analyzed our plans and pointed out the relative ease of
   disruption of the few cables, both dark and lit, routed along major
   highways by many miniature "guillotines" around the fibers remotely
   controlled by pagers.

   On Fri, Dec 20, 2019, 1:26 AM jim bell <[1]jdb10987@yahoo.com> wrote:

[2]https://www.bbc.com/news/technology-50851420

References

   1. mailto:jdb10987@yahoo.com
   2. https://www.bbc.com/news/technology-50851420