I like this idea a lot; a) It's highly interesting b) It's something I hadn't ever thought of previously until I read this article; c) In theory this approach i

I like this idea a lot; a) It's highly interesting b) It's something I hadn't ever thought of previously until I read this article; c) In theory this approach is _slightly better_, _a little bit better_, _a step in the right direction_ for local network security -- better than WiFi and slightly better than Unshielded Twisted Pair (i.e., standard Ethernet cables). A perfectly secure point-to-point signal transmission medium (at least as far as the signal goes, not as far as other network components go) would be a medium which is shielded much like a coaxial cable is -- but then highly tested to insure absolutely no signal leak at the frequencies it is going to use... Related observation: Optical cables -- would meet this criteria...