hmmm..while i did not read the whole thing, i was intrigued by the possible musical connection of radio waves..i have seen a few bands that employ the theramin device these days....some people (such as my
self) did not catch it first time around...

i have had bad experiences with the scanners/viewers at toll booths..
i have had 2 traffic tickets rec'd by a san francisco area toll booth
accusing me of driving thru without paying...once i was no where near the area, and the lic. # of the car shown on the (poor resolution) photo was obviously not mine, the other time i had stopped to get my purse out of the trunk and paid the toll, even had a receipt to show for the transaction, but still was ticketed...so i would not trust the technology that the pass thru cards use...there are some lanes designed for card holders...and they can drive right thru. presumably they have some sort of card that can be read from outside their car as
they pass by...,