The Pentagon’s mad-science arm wants robotic death-from-above, on demand. And the key to getting it done just might be holograms.
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If the plan works, the system will be tiny — just 3 mm thick. And when the display is off, it’ll be totally see-through. Glaser notes: “This will ultimately allow us to design the display right into a pair of sunglasses, so no one will know you are even wearing a display.” Which could make the goggles good for civilians, as well as troops ordering in a robotic, lethal hail.

Well this is the twenty-first century! We have technology! Elbow grease should be optional!