Source – The Economist
Not only has there been an increasing incidence of rampages in the US in the past thirty years but it seems that average kill scores have been ramping up.
I think this trend will only intensify in the years ahead.
A couple of years ago there was a lot of agitation around TrackingPoint, a weapons company that coupled a gun with a tracking system. All you had to do was tag your target, press the trigger, and align the reticle with the tag, which would automatically fire the shot while making adjustments for range, wind conditions, your own motion, etc. Accuracy far exceeds what even the best marksmen are capable of with a traditional rifle and scope outfit. You can also shoot around corners and barricades with special eyeglasses (this was once an exclusively military technology which has now made its way into the civilian market).
Now TrackingPoint’s products aren’t really the sort of weapons you can do a productive rampage with – crucially, it is single shot, and extremely expensive ($20,000) to boot. But it should soon be possible to create far more effective solutions. For instance, a standalone mod that contains a database of common gun models (and maybe the option to input custom data) that you can strap onto any old AK. An accomplice can tag targets remotely through a connected smartphone, or even automate the process entirely on the basis of face recognition. Think of the kind of head shot percentages you can achieve.
Even more creative solutions can be thought up. Just the sort of stuff you can do by coupling this with drones can provide material for countless cyberpunk stories.
Once you have a certain penetration rate of such technologies and a high enough percentage of mentally ill, highly aggrieved, and/or high risk ethnoreligious groups in your society, I suspect draconian gun control will become all but inevitable – even in a society as traditionally liberal on this question as the US.