Do you realize that all this amounts to unavoidable proliferation of autonomous guided ordnance ? Expect narco drone assassinations in Mexico soon and don't think your homeland is immune to the employment of cheap widely available technological artifacts...
Yes, just like guns are a cheap, widely available technology and used by criminals and dictators already. I am not advocating drone wars, just saying it will happen; the US finds itself engaged in wars already - often several at a time - although it leads to both American losses and local civilian casualties. Which president would rather send in troops than robots?
Unlike the Americans, who have the planes, helicopters, rockets, tanks, carriers etc to launch these drones from a safe distance, it would be hard for terrorists to use it against Americans.
Americans would try to keep the technology to themselves for a while with usual non-proliferation laws and by using encryption on the deployed drones.
"Finds"? More like goes out of its way to engage in wars, thousands upon thousands of miles away from its borders, for BS pretextes ("democracy", "WMDs") or for the cynical because-we-want-control-and-resources excuse ("strategic interests").
> although it leads to both American losses and local civilian casualties
As the last decade's worth of field experience shows, worry-free assassination doesn't reduce civilian casualties - it increases them... Most casualties from drone strikes were weakly qualified targets and most of them were not the opponents the USA sought to kill... But who cares - no risk to USA soldiers !
Vehicle-based counter-air systems will simply be added presidential motorcades, and they would be sold as stand-alone systems.
Current counter-air technologies can be scaled down (eg: Iron Dome, S-400, etc) and the preferred method of interception will more than likely be laser-based.
