Defense contractors in the US have developed
a gun-mounted system for recognising enemies. The system consists of a camera mounted on a rifle, attached to a backpack computer which recognises and keeps a database of faces; it can alert the soldier to the same face showing up in a variety of trouble spots (i.e., a troublemaker), or being on a pre-supplied list of bad guys/terrorists/ornery varmints. Perhaps they could even attach it to the gun's trigger, so then all you'd have to do is sweep the gun over a crowd and it'd automagically shoot the right people.
Now if they combined this technology with the fleets of swarming aerial drones and carnivorous robots, then we'd really be getting somewhere.
3 words... BRING IT ON
It's about time we made those meataxes in the armed forces redundant anyhow, surely artificial intelligence has superceded their limited intellects by now?!?