Police?

the police already likely run the network. certain officers might be members of a baptist church, say, and already have more than one reason to try secret radio. so then they should be rooted out.

aside from that wisdom, companies like Fluke make analyzers that are very expensive and sweep areas for total frequencies and map them out. and priint them. and send them to company officers. so let the people be the officers of our country's airspace. and let's see the results.