
Ladies and Gentlemen, meet Crusher.
This 6-wheel drive, 6-ton behemoth is currently under development by DARPA, the high-tech R&D branch of the US Army. Currently, they are working on 3 varients of it: A high-speed ammo/supply carrier (so basically a robotic mule), an armored ambulance, and the one pictured, and armed tank.
"But wait, what is with all the cameras on the front?" you ask. Well, that is the thing. Crusher...is almost 100% autonomus. The only thing it needs from humans is maintainance and an objective. Other than that, it will formulate its own route, re-route itself it it comes across something 6 feet tall or 6 feet deep, and the armed version will have control over its own weapons.
Now, I may just be suffering from the "Terminator Complex" (yes, that is a real phrase), but when I hear about a robot that can basically think for itself and has command over its own weapons, I think we are getting dangerously close to this:

Mine, its pretty iffy. I have no problem with unarmed drones taking over some roles in the army. Bomb-disposel robots and recon drones are fine, but mostly because they wont be able to hurt people. Other than that, I think we should think VERY carefully before giving robots guns and missiles, ESPECIALLY if they are autonomus. I even have problems with Predator drones taking over air-strike roles usually held by strike fighters. Reasons:
1) People will care if a human dies: I know I am pro-intervention, but it is my belief that if robots did all the fighting, we would go into battle without even thinking about it. Because no one will care if a drone gets destroyed. It is just steel and money to most people.
2) A drone can be hacked: No matter how many firewalls you put around it, a drone is still a computer. That means ANYONE with enough skill can hack it...and then use it against us.