Boston Dynamics "pet" project

I do not see any practical application for the robot dogs, but im sure its generating fundamental programming for future applications. thoughts?

Mexico had a really bad earthquake a few years ago. In Mexico they have “mole” people who go inside wrecked and fallen buildings finding people/animals. I think that that sort of robot could cut out the human element.

They have a hardpoint which tools and arms can be attached. The battery life is the most limiting thing imo.