the Active Denial System. it was deployed to Iraq though apparently never used. they've since miniaturized the tech and started selling to police departments (i

the Active Denial System. it was deployed to Iraq though apparently never used. they've since miniaturized the tech and started selling to police departments (iirc) but I still don't think it's been used. I really want to find a DIY build because the device fascinates me, but the only builds I've seen use a regular microwave magnetron rather than using the higher frequency.