On Monday, October 15, 2018, 7:36:44 AM PDT, John Young
   <jya@pipeline.com> wrote:

   >Several years of Tempest (EMR-shielded) documentation (1985-2014):
   [1]https://cryptome.org/nsa-tempest.htm
   >Tempest timeline (1700s-2001)
   [2]TEMPEST Timeline
   × (BUTTON)
   I first read about Tempest in about 1982, I think.  In 1983, I visited
   a customer in Washington DC at a military-technology convention, where
   Tempest was a major subject.
   In the summer of 2002, I was in USP Atwater California prison, working
   at Unicor (Federal Prison Industries).   Our job was "de-manufacturing"
   (disassembling; recycling) many, many computer monitors.  (a typical
   prisoner would recycle maybe 15 of them in an 8-hour workday.)
   I was the only person in the entire prison who knew what all those
   computer parts were, on the PC boards.  One day, I saw a monitor (with
   the case off) which seemed to be shrouded in a fine wire-mesh foil.
   Instantly, I knew what it was:  A Tempest-grade monitor!  I had never
   knowingly seen one before, and certainly not on the inside.
                         Jim Bell

References

   1. https://cryptome.org/nsa-tempest.htm
   2. https://cryptome.org/tempest-time.htm