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GPS wouldn’t be effective at all for drones dropping munitions on infantry moving around on the battlefield, nor on FPV drones trying to fly into moving tanks or other vehicles.
And how do you turn a drone away from an infrared beam of light that would damage the drones optics almost instantly? You’d have to spot the laser system from hundreds of yards away, recognize it’s aimed at your drone, and turn away before the laser is fired. And then what? Just avoid turning your drone back the way you want to go, hoping another strategically positioned laser you didn’t see doesnt fire from a different direction?
Redaction means it’s still classified for some reason. Makes me wonder what they think might still be sensitive on a 40+ year old lecture like this, when DOJ guidelines call for automatic declassification of “records having permanent historical value” after only 25 years unless they fall into a handful of very specific categories, like divulging the identity of an active agent.