"If communications cannot be restored and the failsafe measures fail (as they appear to have here), current drones lack remote-kill or self-destruct mechanisms"

"If communications cannot be restored and the failsafe measures fail (as they appear to have here), current drones lack remote-kill or self-destruct mechanisms" Yikes. Jamming seems to be a pretty big vulnerability for unmanned vehicles in general. I wonder how they account this.