[David Grant]

That sounds like a pretty good deal. I suspect that the major
entertainment venues like the Broadway theaters, stages like Staples
Center, and football stadiums will be pretty diligent about entering their
maximum requirements into the data base. The local church with one or two
wireless mics will not. But I guess that's their problem.

So should I invest in companies that design or install faraday cages
(ignoring the probability that it's currently unwise to invest in anything
other than manufacturers of safes)?