The future of home defense :mrgreen: :
There are some other systems pictured at the link also.
The fully armed Modular Advanced Armed Robotic System (MAARS) is a robot capable of working on the front lines. It features multiple onboard day and night cameras and motion detectors, an acoustic microphone, a hostile fire detection system, and a speaker system. It also has non-lethal laser dazzlers and audio deterrents, less-than-lethal grenades, menacing grenade launchers, and medium machine guns.
http://news.cnet.com/2300-11386_3-10017023.html
There are some other systems pictured at the link also.