One of the ways they prevent eavesdroppers from detecting signals is to increase the noise. This is true for electromagnetic signals and sound. Double windows with piped in music used to be standard, but I’m sure they have moved on to tailored noise designed to be difficult to filter. Who knows what it sounds like. Many office buildings pipe in “pink” noise to make it more difficult to hear what’s going on in other rooms or down the hall. I would expect an embassy to have the pink noise turned all the way up. The problem with these noises is that you get used to them, then go home to silence. The mind plays tricks. You hear about diplomats in Cuba. You talk to coworkers. Spicy food. People talking foreign gibberish. Mass hysteria.
Actually that is something I hadn’t even considered.
Interesting point, that.
Not saying that is what is happening. Not saying that is not what is happening.
Thanks.