From: Phlip Date: 2007-09-04T00:50:51+09:00 Subject: Re: Seeing the source Alex Young wrote: >> A maser is a focused radar that can read this signature. > Erm... no. A maser is a low-frequency laser; see > http://en.wikipedia.org/wiki/Maser. You're thinking of TEMPEST. Again, > refer to the http://en.wikipedia.org/wiki/TEMPEST for details. I'm also thinking of phase-conjugate mirrors, phased-array radars, RF cages, etc. But you are correct I have never bothered to nail down the details... Shred your old hard-drives, guys! (-; -- Phlip http://www.oreilly.com/catalog/9780596510657/ "Test Driven Ajax (on Rails)" assert_xpath, assert_javascript, & assert_ajax