That’s really interesting, but what’s the real question? The Soviet Union was a big place, and full of very thoughtful clever people with imagination, and many of them very good at developing schemes. I have no doubt that someone did consider similar ideas, as well as many others. Who specifically, and/or which specific groups within the USSR, if any, I have no idea. I’m not sure what it would mean to say that “the Soviet Union” considered something or not (and I wouldn’t know unless it happened to relate to the few topics I studied). Well, and I/we still wouldn’t know in any case unless it’s somehow public knowledge, but unless it is, then it would tend to be kept secret since it was a hypothetical subversive strategy.