Declassified NSA Document Reveals the Secret History of TEMPEST
By Ryan Singel
Outside of the government, almost nothing was known about how such
eavesdropping worked until 1985, when a computer researcher named Wim
van Eck published a paper explaining how cheap equipment could be used
to pick up and redisplay ...
Wired: Threat Level -
http://blog.wired.com/27bstroke6/