Lots of talk about 5G and country's now talking about taking this technology off the table. It fall's into the Agenda 21 category of human depopulation techs.
China owns this and you could say if it is all they say it's cracked up to be, it's one stealth weapon.
Causing cancer is just one of it's side effects. Turning the area around you into a micro wave oven is probably it's most interesting capabilities. It's sort of nuking or cooking you in stages.