You seem to be arguing with me about something that I qualified as a rumor but just to button up this thread I did do a bit of research and found the article be

You seem to be arguing with me about something that I qualified as a rumor but just to button up this thread I did do a bit of research and found the article below. Here is a snippet from it and I would suggest seeking answers from those who have a greater expertise/knowledge of these devices. >>>The system used a "horn antenna" to blast a beam of microwave energy at between 30GHz and 100GHz through a building wall: "If people are speaking inside the room, any flimsy surface, such as clothing, will be vibrating. https://www.theguardian.com/world/2013/aug/22/gchq-warned-laser-spying-guardian-offices https://www.theguardian.com/world/2013/aug/22/gchq-warned-la... I am not saying that the Stasi built a cyclotron across from the west German embassy then used it to bounce sub atomic(Radioactive) particles back to their spectrum analyzers to eavesdrop on western bureaucrats, but then again I'm not saying they didn't.