Wireless power transfer is done through magnetic induction, which is well understood. The range on wireless power transfer is very small. If this was a targeted

Wireless power transfer is done through magnetic induction, which is well understood. The range on wireless power transfer is very small. If this was a targeted attack, the device would have to be within a short range and be targeted at this specific individual. And ultimately, what for? This agent appears to have retained their memory but can no longer work in the field. Why would this one field agent be so important to debilitate in this way? What benefit would Russia get from it? I get the motivation behind killing people (dead men tell no tales), but inflicting migraines just seems useless.