I have had a theory this is a "blowback" effect of counter-intel functions inside US diplomatic and related facilities. The amount of RF, sound and other burden

I have had a theory this is a "blowback" effect of counter-intel functions inside US diplomatic and related facilities. The amount of RF, sound and other burdens inside the suspended secure communications facility, and the ubiquity of these facilities inside US state functions operated in potentially adverse economies. Like EMP, you protect to the level you can afford, and demonstrate inside your own testing it's operationally feasible to prevent, not the actual scale an attacker can elect to deploy. It's a variant of the 'look for your lost keys under the lamppost because you can see' problem: to protect secure communications you need to do work, in the radio and sound spectrum, at least as energetic as the attacks you have hypothesised, and you probably wind up injecting TWICE the effective energy overall, if an attack happens: their energy, and your mitigation. If these defences are purely passive, I'd be deeply wrong. I doubt if anyone who knows what active defences are deployed would be able to say so. edit: if this is potentially caused by US counter-intel efforts, they'd probably seek to deny it, but that heads to a conspiracy theory place. A lot of Iraq veterans can testify to how much the forces seek to minimise the damages of service, I would be totally unsurprised if state department and foreign affairs doesn't want a multi-million dollar health claim on their books. No matter what, they have one, but for now it's without associated damages. If they admit to it being their own fault the class action lawyers will have a field day.