Shrug
Give everyone hot flashes?
The Russians had a microwave therapy program that … Was popular? Haven't been able to do much digging into it while at work.
Bounding off of Q's question about satellite comms scientist being killed, it could be that they were doing work in the 2mm band and found some kind of neat and unexpected reaction in organisms.
It could also be that it wasn't 2mm at all, but something else. But connecting the two dots gives me something to dig on a bit.