Despite the occasional banged drum from people who have watched Robocop too many times, autonomous robots will not be allowed to shoot humans with weapons any time soon. We can't even make convincing artificial intelligence in our video games yet. You expect us to be able to create a bot that can distinguish threat levels from humans with executive certainty? Not happening.
But that doesn't mean we aren't arming our robots. Unwired View uncovered this patent from Samsung for a sentry robot based on tried-and-true designs from near-future videogames everywhere: rotating turret with camera eyes and guns that retract behind armor. It certainly wins a prize for looking lethal.
These kind of sentry machines probably will be created at some point, but for foreseeable future they'll still be overseen by human operators that will be the one to actually pull the trigger. And I'm fine with that.