Um why?
I am being 100% serious btw. Do you really think there is something to it? You feel they are detectable using the equipment they use? Like never get curious about the EMP or whatever the electrical field thing is? I mean we are surrounded by electronic frequencies 24/7 and unless you are willing to wrap an entire house or building in shit to prevent it. Even then it seeps up from the ground and well - yeah why?
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