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Old 21st Aug 2019, 5:22 pm   #6
turretslug
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Join Date: Nov 2011
Location: Surrey, UK.
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Default Re: The Cold War spy technology which we all use - Theremin

I'd heard of similar chicanery involving IR lasers being reflected off the windows of embassies and similar premises. Don't doubt for a moment that every possible (and some impossible!) means of finding out what the other side is saying has been thoroughly and expensively investigated and much of it won't escape into the public domain for decades.
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