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. Then again, this sounds like hype-ed up infra-red technology to me, in which case seeing through walls is B.S. Dan

At 06:56 PM 8/12/96 EDT, you wrote: Since metal blocks the waves and stands out on the screen one could affectively block its use by putting up a fine metal mesh on the interior of all walls that are exterior to the house. The same could be said for clothing that looks normal but has a metal mesh liner, like say a trench coat.

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I would wonder if a jamming device (preferably area-effect with a slowly randomly varying swathe of area, to avoid figuring out who was carrying it) would be possible, or some variety of shielding (i.e., emitting waves looking similar to flesh). -Allen

------------------------------------------------------------------ Dan Oelke Alcatel Network Systems droelke@aud.alcatel.com Richardson, TX