I seem to remember that Russia has significant expertise in building powerful and compact microwave sources to control and heat plasma in tokamaks. Nizhny Novgo

I seem to remember that Russia has significant expertise in building powerful and compact microwave sources to control and heat plasma in tokamaks. Nizhny Novgorod is a known centre of expertise in such technology. It wouldn’t be such a stretch to imagine that Putin’s thugs have commandeered it to build a crude, nasty means of messing with their perceived enemies in a deniable way.