The U.S. Navy's Nuclear Submarines Could Be Made Obsolete

On a more human level, it would be interesting to go back in time to World Wars I and II, where a constant refrain of the sailors and airmen who hunted subs was the sheer tedium of the search.Hour after hour after hour of scanning the oceans, in the hope that a needle in the haystack would reveal itself as a sonar contact or a tiny periscope peeking above the surface.If nothing else, farming out sub-hunting to the robots will make chasing subs a bit less dull.