Yes but the US military already has armed robots. I could see this maybe being used as a transport but even that doesn't necessarily mean it's going to be used to kill people.
Though granted if the people it's transporting have guns that's a moot point.
Excellent example. But we also failed to build the necessary safeguards to prevent using the Internet as a massive surveillance machine. When will we learn something from our past failures?
It just seems to be a proof of concept for an agile quadrupedal machine. I see no reason to assume it's going to be used to kill people.