At 09:08 PM 8/13/96 -0400, Alan Horowitz wrote:
If foil or metal mesh would block it, then many recently built houses would be already set. Usually that 1/2 - 1 inch styrofoam used on almost all exterior walls has a reflective layer of foil to help keep the heat/cold out.
Take a course in Tempest practices. Casual residential practice implemented by construction workers do not a vault make.
The context of the discussion wasn't TEMPEST (as you say, it's not enough for that), but new high-frequency hand-held radar imaging, which ostensibly uses radio emissions from human skin or some technique to create images. Foil-backed insulation ought to do a good job stopping that, as well as making infared snooping less useful. Now, the police _claim_ that the product that lets you see the shape of objects under people's clothes has the resolution to find guns and knives and non-naughty-bits of human flesh, but not enough to let those dirty-minded privacy-invaders leer at their victims. Uh huh. At least they probably don't come with printers or data links, so they'll just have to leer at the screen and not save and distribute copies.... Somebody ought to complain to Phyllis Schlafly about this! [less serious material follows:] [Not only will you need the tinfoil lining to your hat, you'll have to get some metallic-lined underwear to avoid being entrapped into aiding and abetting police pornographers. Maybe Erik's gold-lame' suggestion will catch on, at least here in San Francisco....] # Thanks; Bill # Bill Stewart, +1-415-442-2215 stewarts@ix.netcom.com # <A HREF="http://idiom.com/~wcs"> Defuse Authority!