I gave this as an example of what COULD be picked up. Audio-frequency EM (from "processors" running at measly hundreds of kHz, with actual operations at tens of

I gave this as an example of what COULD be picked up. Audio-frequency EM (from "processors" running at measly hundreds of kHz, with actual operations at tens of kHz) picked up by crappy audio amplifier in some old radio - that could happen very easily.