There is no substitute for a big city with a whole bunch of different signal sets emitting in and around the spectrum of the actual selector you are looking for.
There is no substitute for a big city with a whole bunch of different signal sets emitting in and around the spectrum of the actual selector you are looking for.
Found the former SIGINT guy.
http://www.nbcsandiego.com/news/national-international/FBI-M...
On one hand I kind of understand it - the world is slowly coming to the realization that information is the most important weapon in both war and peacetime, and no matter how inconsequential any piece of data may seem the ability to aggregate, cross-reference, and so on mean any shred of information could be dangerous. But at the same time that approach to the world doesn't really allow for a free society. I think the US government has made pretty clear they're happy to subvert or ignore American ideals to protect it (hell, the whole western world is like that now - see May's bald statement that no human right is too important to throw away in pursuit of bad guys).