[FBT]

Do note that the robots described in this article only drive autonomously, and when armed, need a human to (remotely) fire the weapons.

If the robot shot autonomously, you'd have a point about mercy. But the way it is described here, it's exactly the same mercy-wise as if the soldier manning the weapons was riding along in the vehicle.

[vincnetas]

I'm pretty sure pressing a button while sitting in the office is not the same as pulling trigger while looking someone in the eyes...