Some ideas are so enchanting that it’s easy to overlook small but frightfully important details.

When first seen in the wild, the LS3 robot dogs created by Google-owned Boston Dynamics seemed like they could be very useful dogs of war.

The mere sight of them on the battlefield ought to be enough to scare the enemy. Beyond that, the techno-canines could carry equipment and perform other onerous tasks.

It seems, though, that these robo-dogs have one small problem: Like quite a few real dogs, they make too much noise.

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