one might as well say it is possible for a man to build his own rocket ship and fly himself to the moon, given enough capital expenses. It would be more appropriate to say "redesign your entire physical plant to prevent sniffers by using fiber in pressurized conduits to detect penetration." Yes, THAT way you are very likely to never have an undetected sniffer (some highly sensitive organizations even do this). Suggesting someone scan every inch of his physical plant with an electron microscope is completely absurd, no matter demonstrating possibility or not. This whole thread is neither helpful nor inciteful and borders on absurdity. Can we stop now? just my down to earth $.02 - dhh